The value of (sin243° + sin247°) - CUETMOCK

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Home Questions 4SQ9F8ZZ7F

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

The value of (sin²43° + sin²47°) is:

Options:

2

-1

1

0

Correct Answer:

1

Explanation:

sin²43° + sin²47°

= sin²43° + cos²43° (sinθ = cos(90-θ))

= 1 (sin²θ + cos²θ = 1)

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