Question

prove that ..it's urgent

Answer 1

Hey dear here is your answer!!!!!!

$\pi \div 4 = 45$
$\pi \div 6 = 30$
$\pi \div 2 = 90$
$\pi \div 3 = 60$
Now substitute these values in question , u will get your answer ....

If still don't get it then comment I will send you solution

Hope it helps u dear....

Answer 2

I think you should check your ques again...