If the measure of <4 = 105 degrees, what is the measure of <5? PLEASE HELP IF ITS RIGHT ILL MARK BRAINLIEST..

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%