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Is 90 a square number?
No, 90 is not a square number. 81 is 9 squared and 100 is 10 squared.
How angle between vectors affects the resultant?
The Law of Cosines shows the affect of the angle between vectors. R^2 = (A+B)(A +B)*= (AA* + BB* + 2ABcos(AB)) If the angle is less than 90 degrees the resultant squared R^2 is greater than the sum of the vectors squared. If the angle is 90 degrees the resultant squared is the sum of the vectors squared. If the angle is greater than 90 degrees, the resultant squared is less than the Sum of the vectors squared.
What is pythagoran therem?
A squared + B squared = C squared And the therem is a right triangle (90 degrees) the long bit is C the bottom is B and the other one is A
Is negative 90 squared... this is the one with the box around it... rational or irrational and are perfect squares rational or irrational?
-90 squared is rational - it is +8100. All perfect squares are not only rational but they are integers.
What is -90 - 39x plus 3x squared factored?
3x2-39x-90 = (3x+6)(x-15) when factored
