Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The value of 
, is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Isolate the Standard Value Note that 
The remaining product is
Apply the Cosine Product Identity
Use the formula 
with 
Evaluate the Result
Since 
, the terms cancel out to give 
Substituting this back gives
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