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If 3 cot θ = 2, find the value of 4sinθ-3cosθ2sinθ+6cosθ.

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Question

If 3 cot θ = 2, find the value of  `(4sin theta - 3 cos theta)/(2 sin theta + 6cos theta)`.

Sum
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Solution

`cot theta = 2/3`

`= ((4 sin theta - 3 cos theta)/sin theta)/((2sin theta + 6 cos theta)/sin theta)`

`= (4 - 3 cot theta)/(2 + 6 cot theta)`

`= (4 - 3 xx 2/3)/(2 + 6 xx 2/3)`

`= (4 + 2)/(2 + 4) = 2/6`

`= 1/3`

 

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Chapter 10: Trigonometric Ratios - Exercise 10.1 [Page 24]

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R.D. Sharma Mathematics [English] Class 10
Chapter 10 Trigonometric Ratios
Exercise 10.1 | Q 11 | Page 24

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