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If A=2 sin^(2) theta - cos 2 theta , th...

If `A=2 sin^(2) theta - cos 2 theta ` , then

A

`-1 le A le 3`

B

`1 le A le 2 `

C

`-2 le A le 4 `

D

none

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A
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DIPTI PUBLICATION ( AP EAMET)-TRIGONOMETRIC RATIOS AND IDENTITIES -EXERCISE 1 C ( MULTIPLE AND SUBMULTIPLE ANGLES )
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  6. If 180^(@) lt theta lt 270^(@) , tan theta = 5//12 , " then " cos 3 ...

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  13. cot A + tan A =

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  14. tan A + cot 2A=

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  15. tan alpha + 2 tan 2alpha + 4 tan 4 alpha + 8 cot 8 alpha =

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