Math Level 2

Question 1

Sec and Csc cofunction

Answer 1

Sec X = Csc(Pi/2 - X)

Csc X = Sec(Pi/2 - X)

Question 2

Tan and Cot cofunction

Answer 2

Tan X = Cot(Pi/2 - X)

Cot X = Tan(Pi/2 - X)

Question 3

Double Angle Formulas

Answer 3

Sin2X = 2(SinX)(CosX)

Cos2X = Cos^2(X) - Sin^2(X)
= 2Cos^2(X) - 1
= 1 - 2Sin^2(X)

Question 4

Sin and Cos cofunction

Answer 4

Sin X = Cos (Pi/2 - X)

Cos X = Sin (Pi/2 - X)