tan 2A in sin, cos, tan and cot form

sin3A in sin, cos, tan and cot form

Using cot // cos3A in sin, cos , tan and cot form

Using " tan " & " cot "

Using cot

sin 2A in sin, cos, tan, and cot form

cos 2A in sin, cos, tan and cot form

Prove the identity 18

Prove the identity 17

Prove the identity 16

Prove the identity 15

Prove the identity 14

Prove the identity 13

Prove the identity 12

Prove the identity 11

Prove the identity 10

Prove the identity 9

Prove the identity 8

Prove the identity 7

Prove the identity 6

Prove the identity 5

Prove the identity 4

Prove the identity 3

Prove the identity 2

Prove the identity 1

Prove the identity :