Maths / Introduction to Trigonometry / Trigonometric Identities

QUESTION
 

The value of left ( sin ^27frac{1}{2}^0+cos^27frac{1}{2}^0 right )-left ( sin^230^0+cos^230^0 right )+left ( sin ^27^0+sin^283^0 right ) is equal to

OPTIONS
A. 

3

B. 

3frac{1}{2}

C. 

2

D. 

1

Right Option : D

EXPLANATION
Explain TypeExplanation Content
Text

sin 83^0=cos 7^0

therefore the given expression is 1-1+1=1

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