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UNITED BOOK HOUSE-GARDEN REACH BIHARI DAS GIRL'S -EXERCISE
- If x/y alphax+y and y/x alpha x-y, then show that x^2-y^2= constant.
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- 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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- Answer any one : If a/b+c = b/c+a = c/a+b, then prove that each ratio...
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- Prove that if any straight line passing through the centre of a circle...
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- If two tangents are drawn to a circle from a point outside it, then th...
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- In triangleABC, anglaBAC = 90^@ , if CD is a median of triangleABC, th...
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- AC is a diamter of a circle with centre O, If triangleABC is cyclic an...
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- Construct an equilateral triangle with side 6 cm. Draw the in circle o...
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- Draw a cricle with centre at O having the length of radius 2.5 cm. Tak...
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- Find the value of sin^2 pi/3-sec^2 pi/4-cosec^2 pi/4+ cot pi/4.
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- If (sin theta) (x) = (cos theta)/(y), then prove that sin theta - cos ...
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- show that (1-sin^2 alpha)(1-cos^2 alpha)(1+cot^2 alpha)(1+tan^2 alpha)...
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- The heights of two towers are h1 metre and h2 metre. If the angle of e...
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- From a point at a height of 30 metre from the water level of a lake th...
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- Each side of a cube is decreased by 50%. Calculate the ratio of the vo...
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- The curved surface area of a solid right circular cylinder is 1,320 sq...
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- If two solid spheres with the radii of 1 cm and 6 cm lengths are melte...
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- If the median of the given data is 32, then find the value of x and y ...
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- Find the mean of the following frequency distribution table.
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- Draw an ogiven (less than type) from following data.
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