Question

Sec thita + tan thita =2 then let us determine the value of sec thita - tan thita

Answer 1

Given, secβ + tanβ = 2. (thita =β)
Multiplying and dividing this by
secβ - tanβ we get

[sec²(β) - tan²(β)]/(secβ - tanβ) = 2
=> 2(secβ - tanβ) = 1
=> secβ - tanβ = 1/2