Question

Sin⁻¹(1/2)+cos⁻¹(1/2)=?

Answer 1

$\binom{\pi}{2} its \: answer$

Answer 2

let sin inverse (1/2) be a.
then sina =1/2
sin a=sin 30
a=30.
And let cos inverse( 1/2) be b.
then cos b=1/2.
cos b=cos 60
b=60.

sin inverse (1/2)+cos inverse (1/2)=a+b
=30+60
=90.

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