Question

The value of Sin ^2 20 + Cos ^2 20 is??? ​

Answer 1

${\large{\bold{\sf{➠}}}}$ ${\large{\boxed{\sf{sin²x+cos²x=1}}}}$

${\large{\bold{\sf{➠}}}}$ ${\large{\red{\sf{sin²20°+cos²20°=1}}}}$

Answer 2

sin^2A+cos^2A =1

so. answer is 1