Question

3) If cos 0 = 4/5 find the value of sec 0 and tan 0 ​

Answer 1

cosθ = 4/5

sec θ = 5/4

tan²θ = sec²θ - 1

tan²θ = (5/4)² 1

tan²θ = 25/16 - 1

tan²θ = 9/16

tanθ = 3/4