Question

if 3 sinΘ=2 . prove that sin²Θ+cos²Θ=1​

Answer 1

Answer:

3 sino =2

sin o = 2/3

put sino =2/3 in eq.

(2/3)^2 + cos^2= 1

4/9 + (1-sin ^2)= 1( sin^2= 4/9)

4/9+(1-4/9)= 1

4/9+5/9= 1

9/9= 1

LHS = RHS

hope this helps you

mark as brilliant