Question

Sin square 30 + 2 cos2 45 + 3tan2 60​

Answer 1

Answer:11

SIN 30=1/2

COS 45=1/√2

TAN 60=√3

=SIN²30+2 COS² 45+3 TAN² 60

=(1/2)²+2(1/√2)²+3(√3)²

=1/4+1+9

=1/4+10

=44/4

=11