cos^2 θ/2+sin^2 θ/2 =_____?
- 1/4
- 1/2
- 2
- 1
Explanation
The expression is a variation of the trigonometric identity:
cos^2(x) + sin^2(x) = 1
In this case, the expression is:
cos^2(θ/2) + sin^2(θ/2)
Using the identity, we can simplify the expression to: 1
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اس سوال کو وضاحت کے ساتھ پڑھیں
- 34
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- 180°
- 120°
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