4. Find the area of a triangle two sides of which are 18cm and 10cm and the perimeter is
42cm.
(x^3+ax^2+bx+6) has (x-2) as a factor and leave a remainder 3 when divided by (x-3), find the value of a and b
In a rational number numerator is 3 less than the denominator if 3 added to the numerator fraction becomes 1 find the fraction.