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QUADRATIC EQUATIONS: For the things of this world cannot be made known without a knowledge of mathematics.
Solve by factorization
a. 4x2 - 4a2x + (a4 - b4) = 0
Ans: 4x2 - 4a2x + (a4-b4) = 0.
4x2 - [2(a2 + b2) + 2 (a2 - b2)] x + (a2 - b2) (a2 + b2) = 0.
⇒ 2x[2x-(a2 + b2)] - (a2 - b2) [2x - (a2 + b2) = 0.
⇒ x = a2 + b2/2 x = a2 - b2/2
assuming that the earth''s sphere with a radius of 6400 km.. find the distance along a 3 degree arc at the equator of the earth''s surface?
report on shares and dividend using newspaper
#in a picnic the ratio of boys to girls is 3:4. when 6 boys joined the group the ratio became even. how many boys were there before? how many children were there before? how many b
48 more than the quotientvof a number and 64
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in the form of linear graph interpret the ralationship between two quantities
Calculate the mean, variance & standard deviation of the number of heads in a simultaneous toss of three coins. SOLUTION: Let X denotes the number of heads in a simu
(p:4:3p
8l550ml - 1/4l =
-255=-14t-t
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