exam
Maths Puzzle
Numerical Ability
How does one prove that the ratio of the areas of similar polygons equals the similarity ratio squared?
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exam Other Question
What is the difference between 2tanA and tan2A?
Q. If A=30, verify that tan2A = 2tanA / 1-tan sq.A
solve
square root of x - 15 + 1 = the square root of x