IIT JEE TRIGONOMETRIC FUNCTIONS The value of `f(alpha)=sqrt(cos e c^2alpha-2cotalpha)+sqrt(cos e ...

22 views · Published 21 September 2017 · 3:13 · Indexed 22 September 2026

Channel: Doubtnut · 2017 · Education

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This is the Solution of question from Cengage Publication Math Book Trigonometry Chapter 6 TRIGONOMETRIC FUNCTIONS written By G. Tewani. You can Find Solution of all math questions from CENGAGE BOOK on our app DOUBTNUT for free. Download Doubtnut from - https://doubtnut.app.link/Snewl3gHxR

The value of `f(alpha)=sqrt(cos e c^2alpha-2cotalpha)+sqrt(cos e c^2alpha+2cotalpha)`
can be
 `2cotalpha`
 (b) `-2cotalpha`
 (c) 2
 (d) `-2`

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