Question

how to find tan 40⁰ ??​

Answer 1

Answer:

one way to find is using the values of sin 40 and cos 40. tan 40 = 0.839095 —-> value of tan 40 by formula

Answer 2

We can write tan 40o = tan (30 + 10)

we know the formula

tan (A + B) = (tan A + tan B)/ (1 – tan A tan B)