Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

  1. what is the anxwer of sin^-1{sinx +cosx/square root of 2}
  2.                                 cos^-1{cosx +sinx/ square root of 2}                
Asked by Sagar krishna | 21 Jun, 2014, 10:48: AM
answered-by-expert Expert Answer
1. space C o n s i d e r space t h e space g i v e n space e x p r e s s i o n : sin to the power of minus 1 end exponent open curly brackets fraction numerator sin x plus cos x over denominator square root of 2 end fraction close curly brackets sin to the power of minus 1 end exponent open curly brackets fraction numerator sin x plus cos x over denominator square root of 2 end fraction close curly brackets equals sin to the power of minus 1 end exponent open curly brackets fraction numerator sin x over denominator square root of 2 end fraction plus fraction numerator cos x over denominator square root of 2 end fraction close curly brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals sin to the power of minus 1 end exponent open curly brackets sin x cross times cos straight pi over 4 plus cos x cross times sin straight pi over 4 close curly brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals sin to the power of minus 1 end exponent open curly brackets sin open parentheses x plus straight pi over 4 close parentheses close curly brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals x plus straight pi over 4 2. space C o n s i d e r space t h e space g i v e n space e x p r e s s i o n : cos to the power of minus 1 end exponent open curly brackets fraction numerator sin x plus cos x over denominator square root of 2 end fraction close curly brackets cos to the power of minus 1 end exponent open curly brackets fraction numerator sin x plus cos x over denominator square root of 2 end fraction close curly brackets equals cos to the power of minus 1 end exponent open curly brackets fraction numerator sin x over denominator square root of 2 end fraction plus fraction numerator cos x over denominator square root of 2 end fraction close curly brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals c os to the power of minus 1 end exponent open curly brackets cos x cross times cos straight pi over 4 plus sin x cross times sin straight pi over 4 close curly brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals cos to the power of minus 1 end exponent open curly brackets cos open parentheses x minus straight pi over 4 close parentheses close curly brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals x minus straight pi over 4 space space space space space space space space space space space space space space space space space space space space space space space space space space
Answered by Vimala Ramamurthy | 21 Jun, 2014, 01:18: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Maths
the question is given in the attachment in case the attachment is not appearing i have mentioned this question: Solve the differential equation yexydx=⎛⎜⎝xexy+y2⎞⎟⎠ dy. (toppr.com) in this question they have solved the differential equation by substituting v = x/y, but as of my knowledge, this substitution can be made only for zero order homogeneous differential equations, yet the answer they got is correct and is verified by calculator, so does this mean that we can appl this substitution to any differential equation? PS: in some sites they have solved this question by other methods and they have specified substituting v = x/y wont work here as this is not a homogenous differential equation. So can you clarify what is the correct way to solve this question, THANK YOU!
question image
Asked by ashwinskrishna2006 | 24 Dec, 2023, 04:59: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
Please refer to the uploaded image for the doubt.
question image
Asked by arjunsah797 | 22 May, 2022, 10:25: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
sir i only need the correct option
question image
Asked by arijits949596 | 29 Apr, 2020, 10:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
1st ques with explanation 
question image
Asked by lovemaan5500 | 16 Dec, 2019, 09:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
11th sum plz
question image
Asked by lovemaan5500 | 20 Aug, 2019, 05:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
14th sum plz
question image
Asked by lovemaan5500 | 20 Aug, 2019, 05:10: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
Define differential equation.
Asked by Topperlearning User | 08 Oct, 2014, 01:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
Define the order of a differential equation.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
Find the order and degree of the differential equation: .
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
Find the order and degree of the differential equation: .
Asked by Topperlearning User | 04 Nov, 2016, 07:15: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×