Question

Prove that: sin^2A+cos^2A=1​

Answer 1

Answer:

Prove that: sin^2A+cos^2A=1

Step-by-step explanation:

answer of this question

looking so cute

Answer 2

There are two methods to do this.

As attached picture shows take Pythagoras Theorem and divide all the terms by Hypothenuse.

Or

Use the trigonometry table I attached and substitute for C= 0 or 30 or 45 or 60 or 90 (all in degrees) and you would understand why is $sin^2A+cos^2A=1$.

Hope it helps and if yes, please mark me the brainliest.