Ask a Doubt
Request a call back

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

CBSE Class 10 Answered

Find value :-  1/3(cos^2 30 -  sin^2 45) + 2(sin^4 60- sec^4 45) +2/3 tan^2 60 
  1. 65/24
  2. 4/3
  3. 24/65
  4. d 
Asked by sucharitasahoo1 | 26 Dec, 2017, 05:59: PM
answered-by-expert Expert Answer
begin mathsize 16px style 1 third open parentheses cos squared 30 minus sin squared 45 close parentheses plus 2 open parentheses sin to the power of 4 60 minus sec to the power of 4 45 close parentheses plus 2 over 3 tan squared 60 equals fraction numerator begin display style 1 end style over denominator begin display style 3 end style end fraction open square brackets open parentheses fraction numerator begin display style square root of 3 end style over denominator 2 end fraction close parentheses squared minus open parentheses fraction numerator 1 over denominator square root of 2 end fraction close parentheses squared close square brackets plus 2 open parentheses open parentheses fraction numerator begin display style square root of 3 end style over denominator 2 end fraction close parentheses to the power of 4 minus open parentheses square root of 2 close parentheses to the power of 4 close parentheses plus fraction numerator begin display style 2 end style over denominator begin display style 3 end style end fraction cross times open parentheses square root of 3 close parentheses squared equals fraction numerator begin display style 1 end style over denominator begin display style 3 end style end fraction open square brackets fraction numerator begin display style 3 end style over denominator 4 end fraction minus 1 half close square brackets plus 2 open parentheses fraction numerator begin display style 9 end style over denominator 16 end fraction minus 4 close parentheses plus fraction numerator begin display style 2 end style over denominator begin display style 3 end style end fraction cross times 3 equals 1 third cross times 1 fourth plus 2 cross times open parentheses fraction numerator negative 55 over denominator 16 end fraction close parentheses plus 2 equals 1 over 12 minus 55 over 8 plus 2 equals fraction numerator 2 minus 165 over denominator 24 end fraction plus 2 equals fraction numerator negative 163 over denominator 24 end fraction plus 2 equals fraction numerator negative 115 over denominator 24 end fraction NOTE colon Please space check space you space options. end style
Answered by Sneha shidid | 27 Dec, 2017, 12:01: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Maths
sinA(1+tanA)+CosA(1+cotA)=seA+cosecA
question image
Asked by pm86982 | 10 Apr, 2023, 12:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Sin^2A/2+Sin^2(B+C/2)
Asked by adinaditi29 | 14 Mar, 2022, 12:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
prove that 1+sina-cosa/1+sina+cosa=√1-cos/√1+cosa
Asked by ambarishpatil7 | 28 Sep, 2021, 08:49: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
sin teta + 2cos teta =1 prove that 2sin teta - cos teta =2
Asked by manish.mayuka | 02 May, 2021, 02:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Cosec²72° - tan²18°=1
Asked by abhishekmonupatel27 | 23 Feb, 2021, 04:31: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
square root of fraction numerator 1 plus sin empty set over denominator 1 minus sin empty set end fraction end root plus square root of fraction numerator 1 minus sin empty set over denominator 1 plus sin empty set end fraction end root equals 2 s e c empty set
Asked by kushalkush371 | 27 Dec, 2020, 07:31: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Show that … cosec theta minus 2sin cube theta upon 2cos cube theta minus cos theta is equals to tan theta
Asked by pramoddomarp121 | 26 Sep, 2020, 06:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
please help
question image
Asked by satishcharan533 | 24 Sep, 2020, 02:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
please help me to solve this problem
question image
Asked by kalladaprem | 24 Sep, 2020, 08:20: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
how to prive
question image
Asked by farkadeamol9 | 28 Aug, 2020, 10:53: 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
×