question_answer19) Find the largest positive integer that will divide 398, 436 and 542 leaving remainders 7, 11 and 15 respectively. OR Prove that n3 - n is divisible for 6, for every positive integer n.View Answer play_arrow
question_answer33) Prove that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. Using the above, solve the following: A ladder reaches a window which is 12 m above the ground on one side of the street. Keeping its foot at the same point, the ladder is turned to the other side of the street to reach a window 9m high. Find the width of the street if the length of the ladder is 15 m.View Answer play_arrow
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