Question

साइन थीटा अपॉन कोस थीटा प्लस कौशिक थीटा ​

Answer 1

Answer:

Theta is written as A

To prove : sin^2A + cos^2A

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Proof :

We know, sin^2 A = \frac{height^2}{hyotenuse^2} \\ \\cos^2 A = \frac{base^2}{hypotenuse^2}

Then,

sin^2 A + cos^2 A

\frac{height^2}{hypotenuse^2} + \frac{base^2}{hypotenuse^2} \\ \\ \frac{height^2 + base^2}{hypotenuse^2} \\ \\ \frac{hypotenuse^2}{hypotenuse^2} \\ \\ 1

Hence, Proved.

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