Question

Evaluate :
2 cos 67° tan 40°/
sin 23° cot 50°-cos 0°
+tan 15° tan 25° tan 60° tan 65° tan 75°​

Answer 1

Step-by-step explanation:

(2 cos 67° tan 40°)/sin 23° cot 50° – cos 0°+ tan 15° tan 25° tan 60° tan 65° tan 75°

=>(2 sin 23° tan 40°)/ sin 23° tan 40° –1+tan 15° tan 25° * √3 *cot 25° cot 15°

=>2–1+√3

=>1+√3 (answer)

formulae used:

sin @=cos (90°-@)

tan @=cot (90-@)

cos 0°=1

tan 60°=√3

Answer 2

Answer:

The value of the equation is 0.

Step-by-step explanation:

Referred to the attachment.