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Maths Puzzle
Numerical Ability
solve triangle ABC using the given info...
a=4, b=6, c=9. please help me!!! and if you could explain that would be great, im so lost!
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book Other Question
2. Multiply and simplify:
x^2-x-20 * x^2+7x+10
___________ ___________
x^2-3x-10 x^2+4x-5
Prove or disprove the following:
(1)The product of three consecutive integers is even.
(2)For every positive integer n, n2+n+1 is a prime number.
The first one i have used p