Question 1
Introduction to Trigonometry · 2024
For acute θ, √3 sin θ−cos θ=0. Find θ.
Correct!
The answer is B, 30°.
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Introduction to Trigonometry questions for CBSE X
Lakshyank has 183 Introduction to Trigonometry questions for CBSE X. Try a few below, then practise the rest free.
Question 2
Introduction to Trigonometry · 2024
If sinθ=cosθ, find sin⁴θ+cos⁴θ.
Correct!
The answer is B, 1/2.
Question 3
Introduction to Trigonometry
For 0<θ≤30°, cot(2θ)=1/√3. Find sin(3θ).
Correct!
The answer is D, 1.
Question 4
Introduction to Trigonometry
Simplify (1+tan²A)/(1+cot²A), with sin A and cos A nonzero.
Correct!
The answer is C, tan²A.
Question 5
Introduction to Trigonometry
For acute θ, sinθ=cosθ. Find θ.
Correct!
The answer is A, 45°.
Question 6
Introduction to Trigonometry
For acuteθ, m=tanθ+sinθ,n=tanθ−sinθ. Find(m²−n²)²/(mn).
Correct!
The answer is B, 16.
Question 7
Introduction to Trigonometry
A+B=90° and cotB=3/4. Find tanA.
Correct!
The answer is C, 3/4.
Question 8
Introduction to Trigonometry
Evaluate 4/cot²30°+1/sin²30°−2 cos²45°−sin²0°.
Correct!
The answer is A, 13/3.
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