English

If 3 cos θ – 4 sin θ = 2 cos θ + sin θ, find tan θ.

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Question

If 3 cos θ – 4 sin θ = 2 cos θ + sin θ, find tan θ.

Sum
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Solution

3 cos θ − 4 sin θ = 2 cos θ + sin θ

⇒ 3 cos θ − 2 cos θ = 4 sin θ + sin θ

⇒ cos θ = 5 sin θ

⇒ `sintheta/cos theta = 1/5`

∴ tan θ = `1/5`.

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Chapter 10: Trigonometric Ratios - EXERCISE 10.1 [Page 10.17]

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R.D. Sharma Mathematics [English] Class 10
Chapter 10 Trigonometric Ratios
EXERCISE 10.1 | Q 21. | Page 10.17
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