Question

Prove that: tan 15° + tan 30° + tan 15° tan 30º = 1​

Answer 1

Answer:

30 + 15 = 45

tan ( 30+15) = tan (45)

tan (30+15) = 1

( tan 45 = 1)

tan ( a+b) = tan a + tan b/ 1- (tana. tan b)

tan 30 + tan15 / 1- tan30.tan15 = 1

tan 30 + tan 15 = 1- tan30. tan15

tan30 + tan15 + tan30.tan15 = 1

Hence proved

Hope it may help you ♥

Answer 2

Step-by-step explanation:

hope it helps you.

have a nice day.