Ask a Doubt
Request a call back

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

CBSE Class 10 Answered

please solve this problems
question image
Asked by kushalnadiad | 06 Mar, 2020, 06:17: PM
answered-by-expert Expert Answer
cos squared straight A plus 2 sin squared straight A plus 3 cos squared straight A plus....200 space terms equals left parenthesis cos squared straight A plus 3 cos squared straight A plus...100 space terms right parenthesis plus left parenthesis 2 sin squared straight A plus 4 sin squared straight A plus...100 space terms right parenthesis equals cos squared straight A left parenthesis 1 plus 3 plus 5 plus... right parenthesis plus sin squared straight A left parenthesis 2 plus 4 plus 6 plus... right parenthesis equals cos squared straight A left parenthesis 100 squared right parenthesis plus sin squared straight A left parenthesis 100 cross times 101 right parenthesis 10025 equals open parentheses cos squared straight A left parenthesis 100 right parenthesis plus sin squared straight A left parenthesis 101 right parenthesis close parentheses 100 10025 over 100 equals cos squared straight A left parenthesis 100 right parenthesis plus sin squared straight A left parenthesis 100 right parenthesis plus sin squared straight A 10025 over 100 equals 100 plus sin squared straight A sin squared straight A equals 25 over 100 sinA equals 1 half hence cosA equals fraction numerator square root of 3 over denominator 2 end fraction sin space straight A space minus space cos space straight A equals fraction numerator 1 minus square root of 3 over denominator 2 end fraction
Answered by Arun | 07 Mar, 2020, 09:40: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Maths
prove thar tan a-sin a/tan a+Sina, = sec a-1/sec A+1
Asked by balu162 | 16 Jan, 2024, 07:10: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
sin 60° cos 30°+sin² 30° cos 60°
Asked by yatendrak1990.YK | 23 Apr, 2023, 03:56: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
standard angle and non standard angle?
Asked by sonymeitei23 | 07 Jun, 2022, 05:38: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
videos of this chapter
Asked by 5533 | 21 Oct, 2021, 09:58: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
A real number of alfha is zero of p(x) then is A factors of
Asked by anjaligavit77.10dgatl | 21 Oct, 2021, 05:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Evaluate the following: sin 30° + tan 45° - cosec 60°/ sec 30°+ cos 60° + cot 45°
Asked by patelsahil200306 | 29 Jul, 2021, 05:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Find the value of 4/3 tan 60°+3cos30°-2sec30°-3/4cot60°
Asked by asmaatique0987 | 07 May, 2021, 04:13: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
I f space square root of 3 sin theta space plus cos theta space equals 0 degree space a n d space 0 degree less than theta less than 90 degree. space F i n d space t h e space v a l u e space o f space theta. space space space space space space space space space space space space
Asked by kamakshigaur | 23 Feb, 2021, 01:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
sin A + cos B A 30° B is an acute angle find the value of B
question image
Asked by rusuishika | 24 Dec, 2020, 08:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
what will be the ratios of sides for secA and cotA
Asked by gundaswetha2003 | 10 Dec, 2020, 05:19: PM
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
×