5.
Assertion(A): sin2A = 1 + cos2 A
Reason(R): An Equality involving trigonometric ratios of an angle is called
trigonometric identity, if it is true for all values of angle involved
(A) both A & R are true and R is the correct explanation of A.
(B) both A and R are true but R is not the correct explanation of A.
(C) A is true but R is false.
(D) A is false but R is true
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a answer is always right now
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