Me pueden ayudar con esto porfa

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

Graph the equationy= x+3[tex]y = x + 3[/tex]

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)