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The number of solutions of tan x +secx+2...

The number of solutions of `tan x +secx+2cosx` in `[0, 2pi]` is

A

2

B

3

C

0

D

1

Text Solution

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The correct Answer is:
a
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MCGROW HILL PUBLICATION-TRIGONOMETRICAL IDENTITIES AND EQUATIONS -Questions from Previous Years. AIEEE/JEE Main Papers
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  2. Let alpha, beta be such that pi lt alpha-beta lt 3pi. If sin alpha+sin...

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  3. If u=sqrt(a^2cos^2theta+b^2sin^2theta)+sqrt(a^2sin^2theta+b^2cos^2thet...

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  4. If f:R to S is defined by f(x)=sin x-sqrt(3)cosx+1 is onto, then the i...

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  5. The number of values of x iin the interval [0, 3pi] satisfying the equ...

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  6. If the roots of the quadratic quation x^(2)+px+q=0 are tan30^(@) and ...

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  7. If 0 lt x lt pi, and cosx+sinx=1//2, then tan x is

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  8. Let A and B denote the statements A: cos alpha + cos beta + cos gamm...

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  9. For a regular polygon, let r, R be the radii of the inscribed and the ...

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  10. Let cos(alpha+beta)=4//5 and let sin(alpha-beta)=5//13 where 0 le alph...

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  11. If A=sin^(2)x +cos^(4)x, then for all real x

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  12. The possible values of theta in (0, pi) such that sin(theta)+sin(4thet...

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  13. In a DeltaPQR, if 3sinP+4cosQ=6 and 4sinQ+3cosP=1, then the angle R i...

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  14. ABCD is a trapezium such that AB and CD are parallel and BC bot CD. If...

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  15. The expression (tanA)/(1-cotA)+(cotA)/(1-tanA) can be written as

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  16. The number of solutions of the equation sin2x-2cosx+4sinx=4 in the int...

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  17. Let f(k)(x)=(1//k)(sin^(k)x+cos^(k)x) where x in R and k ge 1. Then f(...

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  18. The number of values of alpha in [0, 2pi] for which 2sin^(3)alpha-7sin...

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  19. If "cosec" theta=(p+q)/(p-q)(p pi q pi 0), then |cot((pi)/(4)+(theta)/...

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  20. If 2cos theta+sin theta=1, (theta pi pi//2), then 7cos theta+6 sin the...

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