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किंमत काढा. tan60°sin60°+cos60° - Mathematics 2 - Geometry [गणित २ - भूमिती]

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Question

किंमत काढा.

`[tan 60°]/[sin 60° + cos 60°]`

Sum
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Solution

` [tan 60°]/ [ sin 60° + cos 60°]`

= `sqrt 3/{sqrt3/2 + 1/2}`

= `sqrt 3/[(sqrt 3  +  1)/2]`

= `sqrt3 xx 2/(sqrt3 + 1)`

= `(2 sqrt3)/(sqrt3 + 1)`

= `(2sqrt3(sqrt3-1))/((sqrt3+1)(sqrt3+1)`   

= `(2sqrt3(sqrt3-1))/((sqrt3)^2 - (1)^2)`      ...[∵ (a + b) (a - b) = a2 - b2]

= `(2sqrt3(sqrt3-1))/(3-1)`

= `(2sqrt3(sqrt3-1))/(2)`

= `sqrt3(sqrt3-1)`

shaalaa.com
30° व 60° या कोनांची त्रिकोणमितीय गुणोत्तरे
  Is there an error in this question or solution?
Chapter 8: त्रिकोणमिती - सरावसंच 8.2 [Page 112]

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Balbharati Ganit 2 [Marathi] Standard 9 Maharashtra State Board
Chapter 8 त्रिकोणमिती
सरावसंच 8.2 | Q 2. (iv) | Page 112
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