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Find minimum value of sin^(2)theta+cos...

Find minimum value of
`sin^(2)theta+cosec^(2)theta+cos^(2)theta+sec^(2)theta+tan^(2)theta+cot^(2)theta=?`

A

1

B

3

C

5

D

7

Text Solution

Verified by Experts

The correct Answer is:
D
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KIRAN PUBLICATION-TRIGONOMETRY -TYPE - II
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  2. In a right -angled triangle XYZ right angled at Y . If XY=2sqrt(6)a...

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  3. Find minimum value of sin^(2)theta+cosec^(2)theta+cos^(2)theta+sec^(...

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  4. If 2sin((pi)/(2))=x^(2)+(1)/(x^(2)), then the value of (x-(1)/(x)) i...

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  5. If costheta + sec theta =2, then the value of cos^6theta + sec^6 theta...

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  6. The numerical value of (5)/(sec^(2)theta)+(2)/(1+cot^(2)theta)+3sin...

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  7. If (sintheta+costheta)/(sintheta-costheta)=(5)/(4) , the value of (ta...

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  8. The value of (2cos^(2)theta-1)((1+tantheta)/(1-tantheta)+(1-tantheta...

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  9. If sectheta+tantheta=2 , then the value of sectheta is

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  10. If cosectheta-sintheta=landsectheta-costheta=m, then l^(2)m^(2)(l^(2)+...

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  11. If (2sintheta-costheta)/(costheta+sintheta)=1 , then value of cotthet...

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  12. If r sintheta=(7)/(2)andrcostheta=(7sqrt(3))/(2) then the value of the...

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  13. (tantheta)/(1-cottheta)+(cottheta)/(1-tantheta) is equal to -

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  14. If (sintheta)/(x)=(costheta)/(y) then sintheta-costheta is equal to

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  15. If x=asecthetacostheta,y=bsecthetasinthetaandz=thetatantheta, then fin...

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  16. If k=(1-sinalpha)(1-sinbeta)(1-singamma)=(1+sinalpha)(1+sinbeta)(1+si...

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  17. The numerical value of (1)/(1+cot^(2)theta)+(3)/(1+tan^(2)theta)+2 ...

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  18. If thetagt0 be an acute angle , then the value of theta in deg...

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  19. If f(x) = 3(sin x - cos x)^(4) + 6(sin x + cos x)^(2) +4(sin^(6)x + co...

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  20. The value of sectheta((1+sin theta)/(costheta)+(costheta)/(1+sinthe...

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