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If y=sec^2theta+cos^2theta,\ theta!=0, t...

If `y=sec^2theta+cos^2theta,\ theta!=0,` then- `y=0` b. `ylt=2` c. `ygeq-2` d. `y > 2.`

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ALLEN-TRIGONOMETRIC RATIOS AND IDENTITIES-All Questions
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  2. Period of sin^2theta is- pi^2 b. pi/2 c. 2pi d. pi

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  3. If y=sec^2theta+cos^2theta,\ theta!=0, then- y=0 b. ylt=2 c. ygeq-2 d....

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  7. If t a ntheta=\ -4/3 then s intheta is- -4/5\ b u t\ not4/5 b. -4/5or4...

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  8. sec^2theta=(4x y)/((x+y)^2) is true if and only if x+y!=0 (b) x=y ,x!...

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  9. If u=a^2cos^2theta+b^2sin^2theta+a^2sin^2theta+b^2cos^2theta then the ...

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  10. piltalpha-betalt3pi,sinalpha+sinbeta=-21/65,cosalpha+cosbeta="-27/65,t...

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  16. Let fK(x)""=1/k(s in^k x+cos^k x) where x in R and kgeq1 . Then f4(x)...

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  18. If A >0,\ B >0\ a n d\ A+B=\ pi/6 , then the minimum value of t a n A+...

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