Sec^6x(secxtanx)-sec^4(secxtanx)=se c^5xtan^3x
verify the trigonometric identity

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution

Construct the graph that models the given situation

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.