the sum of squares of two number is 80 and the square of difference between the two numbers is 36. Find the product of two numbers​

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x