Question

cos 0 cot 30° + cos 30º cot 60° + cos 60° cot 45°​

Answer 1

Step-by-step explanation:

cos 0=1

cot 30=√3

cos 30=√3/2

cot 60=1/√3

cos 60=1/2

cot45=1

=(1×√3)+√3/2×1/√3)+(1/2×1)

=√3+1/2+1/2

=√3