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If 0^(@)ltthetalt90^(@), then ((5costhet...

If `0^(@)ltthetalt90^(@)`, then `((5costheta-4)/(3-5sintheta)-(3+5sintheta)/(4+5costheta))` is equal to

A

0

B

1

C

`(1)/(2)`

D

`(1)/(4)`

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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-TRIGONOMETRY -EXERCISES (Multiple Choice Questions)
  1. costheta(tantheta+2)(2tantheta+1)=?

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  2. If x and y are the angles lying in the second quadrant and xlty, then ...

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  3. If 0^(@)ltthetalt90^(@), then ((5costheta-4)/(3-5sintheta)-(3+5sinthet...

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  4. If alpha is a positive acute angle and 2sin alpha+15cos^(2)alpha=7, th...

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  5. If 3tantheta+4=0 where (pi)/(2)lt thetaltpi, then the value of 2cot th...

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  6. If sec^(2)theta=3, 0^(@)ltthetalt(pi)/(2), then the value of (tan^(2)t...

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  7. If 3costheta-sintheta=(1)/(sqrt(2)),(0^(@)ltthetalt90^(@)), then the v...

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  8. If tantheta-cottheta=0(0^(@)ltthetalt90^(@)), then the value of sinthe...

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  9. If sinA+cosecA=3, then find the value of (sin^(4)A+1)/(sin^(2)A).

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  10. cos7^(@)cos23^(@)cos45^(@)cosec83^(@)cosec67^(@)=?

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  11. If (tantheta+cottheta)/(tantheta-cottheta)=2,(0^(@)lethetale90^(@)), t...

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  12. If sinx+cosx=c, then sin^(6)x+cos^(6)x is equal to

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  13. (1-sinAcosA)/(cosA(secA-cosecA)).(sin^(2)A-cos^(2)A)/(sin^(3)A+cos^(3)...

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  14. The minimum value of 12sin^(2)theta+23cos^(2)theta is

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  15. Find the minimum value of (sintheta+cosectheta)^(2)+(costheta+sectheta...

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  16. Find the minimum and maximum value of 4tan^(2)theta+9cos^(2)theta.

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  17. Find the minimum and maximum value of 7cosalpha+24sinbeta.

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  18. Find the minimum and maximum value of 5sin^(2)theta+10cos^(2)theta+12s...

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  19. If A-B=(pi)/(4), then (1+tanA)(1-tanB)=?

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  20. If A+B=135^(@), then (1+cotA)(1+cotB)=?

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