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If sin(alpha+beta)=1, sin(alpha-beta)=1/...

If `sin(alpha+beta)=1`, `sin(alpha-beta)=1/2`, then `tan(alpha+2beta)tan(2alpha+beta)` is equal to:

A

1

B

-1

C

2

D

-2

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JBD PUBLICATION-MODEL PAPER (7)-EXERCISE
  1. The set {x:x is an integer and -3 < x le 2} is equal to:

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  2. The range of the function f(x)=(x^2+x+2)/(x^2+x+1),x in R , is (a) (...

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  3. If sin(alpha+beta)=1, sin(alpha-beta)=1/2, then tan(alpha+2beta)tan(2a...

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  4. The conjugate of 1/(2+i) is

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  5. The number of straight lines that can be formed by joining 20 points o...

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  6. If second term of a GP. is 2 and the sum of its infinte terms is 8, th...

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  7. The point on the axis of y which its equidistant from (-1, 2) and (3, ...

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  8. The equation of the parabola with focus at (0, 3) and the directrix y ...

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  9. underset(xrarr5)lim (|x-3|)/(x-3) is equal to:

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  10. If A and B are events such that P(A) = 0.42, P(B) = 0.48 and P(A cap B...

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  11. The minute hand of a watch is 1.5 cm long. How many cm does its extrem...

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  12. Prove that: 2 sin^2(3pi)/4+2cos^2pi/4+2s e c^2pi/3=10

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  13. If a + ib = ((x+i)^2)/(2x^2+1), prove that a^2+b^2 =((x^2+1)^2)/((2x^2...

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  14. Using Binomial theorem, prove that 6^(n)-5n always leaves remainder 1...

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  15. Write the middle term of (x-1/x)^(2n).

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  16. Find the equation of the set of points P, the sum of whose distance fr...

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  17. Find out which of the following sentences are statements and which are...

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  18. Find out which of the following sentences are statements and which are...

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  19. Write each of the statement in the form if p and then q p: It is nec...

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  20. Write each of the following statements in the form "if p then q" q: Th...

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