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Find sin.(x)/(2) " if " tan x = - (4)/(3...

Find `sin.(x)/(2) " if " tan x = - (4)/(3)` x lies in second quadrant.

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The correct Answer is:
`(2)/(sqrt(5))`
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SUBHASH PUBLICATION-PU EDU.DEPT.MODEL QUESTION PAPER (WITH ANSWERS)-PART - B ( II. Answer any TEN questions)
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  3. Represent the complex number z = 1 + i in polar form.

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  9. If AxxB={(a,1)(a,2) (a,3)(b,1)(b,2)(b,3)} find the sets A and B and h...

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  10. The difference btween two acute angles of a right angled triangle is 3...

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  11. Find sin.(x)/(2) " if " tan x = - (4)/(3) x lies in second quadrant.

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  12. {:("lim"),(xrarr3):}(x-3)/(x^(2)-5x+6)

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  13. The coefficient of variation for a distribution is 60 and standard dev...

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  14. Write the inverse , converse of 'If a parallelogram is a square , then...

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  15. On her vacations Veena visits cities A,B C and D in random order . Wha...

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  16. In a triangle ABC with vertices A(2,3) , B (4,-1) and C (1,2) . Find t...

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  17. Represent the complex number z = 1 + i in polar form.

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  18. Obtain all paris of consecutive odd natural numbers such that in such ...

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  19. A line cuts of equal intercepts on the coordinate axes. Find the angle...

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  20. If the origin is the centroid of the triangle PQR with vertices P (2a,...

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