# Basic Trigonometric Identities Quiz Questions and Answers 45 PDF Download

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## Quiz on Basic Trigonometric Identities Worksheet 45Quiz PDF Download

Basic Trigonometric Identities Quiz

MCQ: Tan(-135°) =

- 1/√(2)
- −1/√(2)
- 3/√(2)
- 1

D

Binary Operation Quiz

MCQ: If * is a binary operation in A then

- A is closed under *
- A is not closed under *
- A is not closed under +
- A is closed under -

A

Online Math Learning Quiz

MCQ: Cos20°+cos100°+cos140° =

- 2
- 1
- 0
- −1

C

Rational Numbers & Irrational Numbers Quiz

MCQ: Every natural number is also

- irrational number
- Even integer
- Negative integer
- rational number

D

Binary Operation Quiz

MCQ: Negation of a given number is

- binary operation
- relation
- unary operation
- relation in some set

C