Riddle puzzle: 12th grade calculusTap a question and solve it. Then tap your answer in the decoder to place its letter. The letters answer the riddle!What did the calculator say to the pencil?1.Differentiate y = 10x^(3/2).2.Evaluate ∫ from 1 to 3 of (12x² + 1) dx.3.For f(x) = x² − 4x, simplify (f(x + h) − f(x))/h.4.At what x is the gradient of y = x² + 4x + 9 equal to 6?5.Differentiate y = 5/x.6.Find the gradient of y = 3x³ + x² + 8 at x = 0.7.Where is f(x) = x³ − 12x² + 21x + 1 decreasing?8.Find d²y/dx² when y = 2x⁴ − x³ + 7x² − 3x − 7.9.At what x is the gradient of y = x² + 4 equal to −6?Decoder · for question 1x = 1Nx = -3E-5/x^2T12x^2+16x+5Z1 < x < 7N2x + h + 1J24x^2-6x+14M106O2x + h − 4U15*sqrt(x)C−2/x + CQ-6X0OThe answer to the riddle