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Prove the following: tan x + cot x = 2 cosec 2x - Mathematics and Statistics

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प्रश्न

Prove the following:

tan x + cot x = 2 cosec 2x

योग
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उत्तर

L.H.S. = tan x + cot x

= `sinx/cosx + cosx/sinx`

= `(sin^2x + cos^2x)/(cosx*sinx)`            ...[sin2 + cos2x = 1]

= `1/(sinx*cosx)` 

= `2/(2sinx cosx)`             

= `2/(sin2x)`

= 2 cosec 2x

= R.H.S.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Trigonometry - 2 - Exercise 3.3 [पृष्ठ ४८]

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बालभारती Mathematics and Statistics 1 (Arts and Science) [English] Standard 11 Maharashtra State Board
अध्याय 3 Trigonometry - 2
Exercise 3.3 | Q 3. (v) | पृष्ठ ४८
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