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Practice online math learning career test with multiple choice question (MCQs): cos728° =, with choices −cos8°, −sin8°, sin8°, and cos8° for online math degree. Learn trigonometric identities questions and answers for scholarships exams' problem-solving, assessment test.

Online Math Learning Quiz

MCQ: Cos728° =

1. −cos8°
2. −sin8°
3. sin8°
4. cos8°

D

Fundamental Identities Quiz

MCQ: (secθ-tanθ)² =

1. 1 + sinθ/1 - sinθ
2. (1 - sinθ)/(1 + sinθ)
3. (1 - cosθ)/(1+cosθ)
4. cscθ

B

Notation & Value of Function Quiz

MCQ: If f:x→cos(x) is a function, then ƒ(π) =

1. −1
2. ¹⁄2
3. ¹⁄3
4. 1

A

Homogeneous Linear Equations Quiz

MCQ: If |A| = 0, then A is

1. zero matrix
2. singular matrix
3. non-singular matrix
4. 0

B

Online Math Learning Quiz

MCQ: Tan(45°+A)tan(45°-A) =

1. 1
2. tanA
3. −tanA
4. −cotA

A