Q. 34.7( 3 Votes )
Mark the Correct alternative in the following:
The value of 
is
A.
B. 
C. 
D. None of these
Answer :
Given expression,
Multiply and divide the expression with 
[using the formula sin2θ =2 sin θ cos θ]
Multiply and divide the expression with 2
[using the formula sin2θ =2 sin θ cos θ]
Multiply and divide the expression with 2
[using the formula sin2θ =2 sin θ cos θ]
Multiply and divide the expression with 2
[using the formula sin2θ =2 sin θ cos θ]
Multiply and divide the expression with 2
[using the formula sin2θ =2 sin θ cos θ]
Multiply and divide the expression with 2
As 
Hence answer is option D.
Rate this question :
Trigonometric Ratios of Sub Angles35 mins
Trigonometric Functions - 0568 mins
Trigonometry ratios of allied angles | Interactive Quiz38 mins
Conditional Identities31 mins
Transformation formula in compound angles | Interactive Quiz37 mins
Trigonometric Functions - 0152 mins
Quiz on Graph of Trigonometric Ratios40 mins
Graphs of trigonometric ratios | Trigonometric Identities39 mins
Trigo ratios for compound angles48 mins
Quiz - Trigonometric Ratios of Sub Angles33 mins
Prove that:
Prove that:
Prove that:
Prove that:
Prove that:
Prove that:
Prove that:
Prove that:
Mark the Correct alternative in the following:
The value of cos (36o – A) cos (36o + A) + cos(54o – A) cos (54o + A) is
RD Sharma - Mathematics
Mark the Correct alternative in the following:
The value 
of is
RD Sharma - Mathematics
