Question

Find the value of sin 60° cos 30° + sin 30° cos 60° - tan 45​

Answer 1

Answer:

(√3/2) (√3/2) + (1/2) (1/2) -1

=3/4+1/4-1

=4/4-1=1-1=0

Answer 2

Answer:

We know that,

sin60°=√3/2

cos30°=√3/2

sin30°=1/2

cos60°=1/2

tan45°=1

So,the value comes after substituting the above as,

√3/2*√3/2+1/2*1/2-1

=3/4+1/4-1

=4/4-1

=1-1

=0

Hence the value of the above ratios is 0