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If tan 6 theta . tan 4 theta= 1 then fin...

If `tan 6 theta . tan 4 theta= 1` then find the value of `sin 5 theta`.

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UNITED BOOK HOUSE-ANISHMALI UNTIED ACADEMY-EXERCISE
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  2. If each edge of a cube is doubled then how much the volume of the cube...

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  3. If tan 6 theta . tan 4 theta= 1 then find the value of sin 5 theta.

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  4. The length of radius of a circle 14 cm. Determine the circular value o...

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  5. If the mean of a frequency distribution is 8.1 sumfixi= 133+5k and sum...

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  6. Find the sum of money if the difference between compound interest and ...

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  7. Dipu, Rabeya and Megha have started a small business by investing that...

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  8. If the roots of the quadratic equation (b-c)x^2+(c-a)x+(a-b)= 0 are eq...

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  9. Solve: 1/((x-1)(x-2))+1/((x-2)(x-3))+1/((x-3)(x-4))=1/6[x!=1,2,3,4]

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  10. If x= (sqrt7+sqrt3)/(sqrt7-sqrt3) and xy= 1 then find the value of (x^...

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  11. If (x^3+y^3) alpha(x^3-y^3) prove that (x^2+y^2) alpha(x^2-y^2).

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  12. If a,b,c, are in continued proportion then prove that a^2b^2c^2(1/a^3+...

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  13. If x/y= (a+2)/(a-2) show that (x^2-y^2)/(x^2+y^2)=(4a)/(a^2+4)

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  14. Prove that opposite angles of a cyclic quadrilateral are supplementary

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  15. State and Prove Pythagoras theorem.

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  16. Prove that cyclic trapezium is isoscles trapezium and the length of it...

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  17. O is any point inside a rectangle. Prove that OA^2+OC^2=OB^2+OD^2.

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  18. Answer any one question : Draw an equilateral triangle of side of 6 c...

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  19. Geometrically find the value of sqrt(9 ).

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  20. If tan theta = a/b then find the simpliest value of (b cos theta-a sin...

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