Prove that sec(theta)+csc(theta)=(sin(theta)+cos(theta))(tan(theta)+cot(theta))

mattgondek4

mattgondek4

Answered question

2021-01-07

Prove that sec(θ)+csc(θ)=(sin(θ)+cos(θ))(tan(θ)+cot(θ))

Answer & Explanation

SchepperJ

SchepperJ

Skilled2021-01-08Added 96 answers

RHS =(sin(t)+cos(t))(tan(t)+cot(t))=(sin(t)+cos(t))(sin(t)cos(t)+cos(t)sin(t))=(sin(t)+cos(t))sin2(t)+cos2(t)(sin(t).cos(t))
RHS =(sin(t)+cos(t))1(sin(t).cos(t))=(1cos(t)+1sin(t))=sec(t)+csc(t)= LHS
RHS = LHS

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