exam
Maths Puzzle
Numerical Ability
the sum of the lengths of the two legs of a right angle triangle is 14 cm. find the length of the shortest hypotenuse.
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exam Other Question
The length of a rectangle is 2 in. more than twice its width. If the perimeter of the rectangle is 52 in., find the width of the rectangle.
I worked this problem and I came up with 9 in. Hope I am right!!
Trigonometry Identities
Prove the identity is true
1/cosx - cosx = sinx tanx