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If 0ltalphaltpi/6, than alpha(cosecalpha...

If `0ltalphaltpi/6`, than `alpha(cosecalpha)` is

A

less than `pi/6`

B

greater than `pi/6`

C

less than `pi/3`

D

greater than `pi/3`

Text Solution

Verified by Experts

The correct Answer is:
C
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ARIHANT MATHS ENGLISH-TRIGONOMETRIC FUNCTIONS AND IDENTITIES-Exercise (Questions Asked In Previous 13 Years Exam)
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  2. Let alpha and beta be non-zero real numbers such that 2 ( cos beta -...

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  8. If sin^ 4 x/2+cos^4 x/3 =1/5 then

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  9. Let theta in (0,pi/4) and t1=(tan theta)^(tan theta), t2=(tan theta)^(...

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  14. If a Delta PQR " if" 3 sin P + 4 cos Q = 6 and 4 sin Q + 3 cos P =1 , ...

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  15. If A = sin^2x + cos^4 x, then for all real x :

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  16. Let cos(alpha+beta)""=4/5 and let sin (alpha+beta)""=5/(13) where 0lt=...

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  17. If cosalpha+cosbeta+cosgamma=0=sinalpha+sinbeta+singamma, then which...

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  19. If 0 lt x lt pi and cos x + sin x = 1/2, then tan x is

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