1.

What will we get sin²theta × cos²theta

Answer»

Sin²α+cos²α= 1

Since SIN α = HYPOTENUSE / PERPENDICULAR

COS α = Base/Perpendicular

Therefore, sin²α+cos²α= (Perpendicular²/Hypotenuse²)+(Base²/Hypotenuse²)
= (Perpendicular²+Base²)/Hypotenuse²
=Hypotenuse²/Hypotenuse²= 1



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