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If sectheta+tantheta=1 then one root of ...

If `sectheta+tantheta=1` then one root of equation `a(b-c)x^2+b(c-a)x+c(a-b)=0` is

A

`tantheta`

B

`sec theta`

C

`cos theta`

D

`sin theta`

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The correct Answer is:
B, C
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PATHFINDER-TRIGONOMETRIC RATIOS AND IDENTITIES-QUESTION BANK
  1. For +ve integer n, letfn(theta)=tan(theta/2)(1+sectheta)(1+sec2theta)(...

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  2. If x=secphi-tanphi and y=cosecphi+cotphi, then

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  3. If sectheta+tantheta=1 then one root of equation a(b-c)x^2+b(c-a)x+c(a...

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  4. if cosx+secx=(-2) then for a positive integer n cos^nx+sec^nx is

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  5. sec^2theta=4xy/(x+y)^2 is true if and only if

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  6. If tanx=(2b)/(a-c), (a ne c) y=acos^2x+2bsinxcosx+csin^2x and z=asin...

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  7. If secA+tanA=3/2 then

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  8. If tantheta=(sin alpha-cos alpha)/(sinalpha+cosalpha)1 then

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  9. The value of cos(pi/15)cos(2pi/15)cos(3pi/15)cos(4pi/15)cos(5pi/15)cos...

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  10. The value of cos((2pi)/7)cos((4pi)/7)cos((6pi)/7) is

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  11. The value of sin (pi/14)sin(3pi/14)sin(5pi/14)sin(7pi/14)sin(9pi/14)si...

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  12. If Pn=sin^ntheta+cos^ntheta where n in W (whole number)and theta in R ...

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  13. If Pn=sin^ntheta+cos^ntheta where n in W (whole number)and theta in R ...

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  14. If Pn=sin^ntheta+cos^ntheta where n in W (whole number)and theta in R ...

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  15. if f(theta)=acostheta+bsintheta then -sqrt(a^2+b^2)lef(theta)lesqrt(a^...

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  16. if f(theta)=acostheta+bsintheta then -sqrt(a^2+b^2)lef(theta)lesqrt(a^...

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  17. if f(theta)=acostheta+bsintheta then -sqrt(a^2+b^2)lef(theta)lesqrt(a^...

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  18. Find the range of A/2 if it satisfies 2 cos( A/2)=sqrt(1+sin A)-sqrt(1...

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  19. If for two sets A and B,A-B=A then which of the following is true?

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  20. Match List - I with List-II

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