Maths : Trigonometry: Book Back, Exercise, Example Numerical Question with Answers, Solution: Exercise 6.1: Trigonometry Basic

**Trigonometry: Basic**

**Exercise 6.1**

**1. From the given figure, find all the
trigonometric ratios of angle B.**

**2. From the given figure, find the values
of**

**(i) sin B (ii) sec B (iii) cot B (iv)
cos C (v) tanC (vi) cosecC**

**3. If 2 cos θ = √3 , then find all the
trigonometric ratios of angle θ .**

**4. If cos A = 3/5, then find the value
of (sin A−cosA) / 2tanA. **

**5. If cos A = ****, then find the
values of sinA and tanA in terms of x.**

**6. If sin θ = **

**7. If 3cot A = 2 , then find the value
of [ 4sinA-3cos A ] / [ 2sinA+3cos A ]. **

**8. If cos θ : sin θ = 1 : 2, then find
the value of [8cosθ-2sinθ ] / [ 4cosθ+2sinθ].**

**9. From the given figure, prove that
θ+φ=90º. Also prove that there are two other right angled triangles. Find sin α, cosβ and tanϕ. **

**10. A boy standing at a point O
finds his kite flying at a point P with distance OP=25m. It
is at a height of 5m from the ground. When the thread is extended by 10m
from P, it reaches a point Q. What will be the height QN of
the kite from the ground? (use trigonometric ratios)**

Tags : Numerical Problems with Answers, Solution | Trigonometry | Maths , 9th Maths : UNIT 6 : Trigonometry

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9th Maths : UNIT 6 : Trigonometry : Exercise 6.1: Trigonometry Basic | Numerical Problems with Answers, Solution | Trigonometry | Maths

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