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If f(x)=cos^2x+s e c^2x ,t h e n f(x)...

If `f(x)=cos^2x+s e c^2x ,t h e n` `f(x)<1` (b) `f(x)=1` (c) `2ltf(x)<1` (d) `""""f(x)ge2`

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
  1. The upper 3/4 th portion of a vertical pole subtends an angle theta su...

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  2. Solve (log)(tanx)(2+4cos^2x)=2

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  3. If f(x)=cos^2x+s e c^2x ,t h e n f(x)&lt;1 (b) f(x)=1 (c) 2ltf(...

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  4. prove that sintheta.sec3theta+sin3theta.sec3^2theta+sin3^2theta.sec3^3...

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  5. Solve 4cot2theta=cot^2theta-tan^2theta

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  6. Find the range of f(x)=sin^2x-3sinx+2

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  7. Prove that (cos10^0+sin10^0)/(cos10^0-sin 10^0)=tan55^0

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  8. Find the range of f(x)=1/(4cosx-3)dot

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  9. Find the most general solution of 2^1|cosx|+cos^2x+|cosx|^(3+oo)=4

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  10. Let A B Ca n dA B C ' be two non-congruent triangles with sides A B=4,...

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  11. If in triangle A B C ,/C=45^0 then find the range of the values of sin...

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  12. Solve sqrt(3)costheta+sintheta=sqrt(2)

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  13. Find the range of f(x)=1/(5sinx-6)

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  14. Two parallel chords of a circle of radius 2 are at a distance. sqrt(3+...

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  15. Prove that: sum(k=1)^(100)sin(k x)cos(101-k)x=50"sin"(101 x)

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  16. The expression 3[sin^4(3/2pi-alpha)+sin^4(3pi+alpha)]-2[sin^6(1/2pi+al...

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  17. Solve sqrt(3)costheta-3sintheta=4sin2thetacos3thetadot

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  18. Consider a triangle A B C and let a , ba n dc denote the lengths of th...

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  19. If alpha,beta,gamma, in (0,pi/2) , then prove that (s i(alpha+beta+gam...

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  20. Find the number of integral value of n so that sinx(sinx+cosx)=n has a...

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