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If 3 `Cot Theta = 4 , "Write the Value Of" ((2 Cos Theta - Sin Theta))/(( 4 Cos Theta - Sin Theta))` - Mathematics

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Question

If 3 `cot theta = 4 , "write the value of" ((2 cos theta - sin theta))/(( 4 cos theta - sin theta))`

Solution

W e have , 

 3 `cot theta = 4 `

 ⇒ ` cot theta = 4/3 `

 Now, 

       `((2 cos theta + sin theta ))/((4 cos theta - sin theta))`

      =` (((2 cos theta )/ sin theta + sin theta / sin theta))/(((4 cos theta) / sin theta - sin theta/ sin theta))`          (๐ท๐‘–๐‘ฃ๐‘–๐‘‘๐‘–๐‘›๐‘” ๐‘›๐‘ข๐‘š๐‘’๐‘Ÿ๐‘Ž๐‘ก๐‘œ๐‘Ÿ ๐‘Ž๐‘›๐‘‘ ๐‘‘๐‘’๐‘›๐‘œ๐‘š๐‘–๐‘›๐‘Ž๐‘ก๐‘œ๐‘Ÿ ๐‘๐‘ฆ sin ๐œƒ)

      =`((2 cot theta +1))/((4 cot theta -1))`

       =`((2xx4/3 +1))/((4xx4/3-1))`

       =`((8/3+1/1))/((16/3-1/1))`

       =`(((8+3)/3))/(((16-3)/3))`

       =`((11/3))/((13/3))`

       =`11/13`

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Chapter 8: Trigonometric Identities - Exercises 3

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RS Aggarwal Mathematics [English] Class 10
Chapter 8 Trigonometric Identities
Exercises 3 | Q 21
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