Question

if x is equal to 45 and Y is equal to 30 verify that=sin X/cos X+sin X sin y =2/3.

Answer 1

sin 45/cos 45+sin 45sin 30

=(1/√2)/((1/√2)+(1/√2*1/2))

=(1/√2)/((2+1)/2√2)

=2/3