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If tanA=3/4 and A+B=90^@, then what is t...

If `tanA=3/4` and `A+B=90^@`, then what is the value of `cotB` ?

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RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS-All Questions
  1. Write the acute angle theta satisfying sqrt(3)sintheta=costheta .

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  2. Write the value of tan10^@tan15^@tan75^@tan80^@ .

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  3. If tanA=3/4 and A+B=90^@, then what is the value of cotB ?

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  4. If tanA=5/(12), find the value of (sinA+cosA)secA .

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  5. If theta is an acute angle such that costheta=3/5 , then (sinthetatant...

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  6. If tantheta=a/b , then (asintheta+bcostheta)/(asintheta-bcostheta) is ...

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  7. If 5tantheta-4=0, then the value of (5sintheta-4costheta)/(5sintheta+4...

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  8. If 16cotx=12, then (sinx-cosx)/(sinx+cosx) equals (a) 1/7 (b) 3/7 (c) ...

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  9. If 8tanx=15 , then sinx-cosx is equal to

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  10. If tantheta=1/(sqrt(7)) , find the value of (cos e c^2theta-sec^2th...

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  11. If tantheta=3/4, then cos^2theta-sin^2theta= (a) 7/(25) (b) 1 (c) -7/...

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  12. If theta is an acute angle such that tan^2theta=8/7 , then the value o...

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  13. If 3costheta=5sintheta, then the value of (5sintheta-2sec^3theta+2cost...

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  14. If tan^2 45^@-cos^2 30^@=xsin45^@ \ cos45^@, then x is (a) 2 (b) -2 (c...

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  15. The value of cos^2 17^@ - sin^2 73^@ is (a) 1 (b) 1/3 (c) 0 (d) -1

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  16. The value of (cos^3 20^@-cos^3 70^@)/(sin^3 70^@-sin^3 20^@) is (a) 1/...

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  17. If A and B are complementary angles, then (a) sinA=cosB (b) cosA=s...

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  18. If xsin(90^@-theta)cot(90^@-theta)=cos(90^@-theta) , then x=

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  19. If xtan45^@cos60^@=sin60^@cot60^@ , then x is equal to

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  20. If angles A ,\ B ,\ C of a /\A B C form an increasing A P , then sinB=...

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