Blog Tag Trignometry

Factories: 2?(x+2y)?^2 – 5(x + 2y) + 2

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The simple interest on a certain sum of money is 3/8 of the sum in 6 1/4 years. Find the rate percent charged.

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A sum of money, lent out at simple interest, doubles itself in 8 years. Find the rate of interest.

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The difference between the exterior angles of two regular polygons, having the side equal to (n – 1) and (n+ 1) is 9. Find the value of n.

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The perimeter of rectangle is 28x^3 + 16x^2 + 8x + 4. One of its sides is 8x^2 + 4x. Find the other side.

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Find the amount & compound interest on Rs 20,000 for 11/2 year at 10% per annum compounded half – yearly.

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In a regular pentagon ABCDE, draw a diagonal BE and then find the measure of: Angle BAE ; Angle ABE ; Angle BED

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The difference between two number is 5 and their product is 14. Find the difference between their cubes.

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If the interest on Rs 2,400 be more than the interest on Rs 2,000 by Rs 60 in 3 year at the same rate per cent; find the rate

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Simplify: 7x + 4{x^2 ÷ (5x ÷ 10)} – 3{2 - x^3 ÷ (3x^2 ÷ x)}

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Prove that: 1/(1+ x^(a-b) )+ 1/(1+ x^(b-a) )=1

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Find for x; 1/(x-1) - 1/x = 1/(x+3) - 1/(x+4)

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Prove that: (m+n)^(-1) (m^(-1)+ n^(-1)) = (mn)^(-1)

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Evaluate: (a^(2n+1) ×a^((2n+1)(2n-1)))/(a^(n(4n-1)) ×(a^2)^(2n+3) )

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Question: Find for x (x-1)/5 – x/3 = 1 – (x-2)/2

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