Question

if sin theeta =3/5 and 4/5, find the value of sin²theeta+ cos ²theeta​

Answer 1

Answer:

sin^2theeta + cos^2theeta = 1

it's the identity

sin^2theeta = (3/5)^2 = 9/25

cos^2theeta =(4/5)^2 = 16/25

so 9/25 + 16/25 = 1

Hence proved