Question

Prove that:

sin^4 theta+2sin^2theta cos^2theta+cos^4theta=1

please answer it fast​

Answer 1

Step-by-step explanation:

sin^4 theta+2sin^2theta cos^2theta+cos^4theta=1

If we observe its basically a formula

(a+b)^2 = a^2 +b^2 +2ab

(sin^2 theta + cos^2 theta )^2

= (1)^2

= 1