Assume that x and y are both differentiable functions of t and are related by the equation y=cos(4x). Find dydt when x=π8, given dxdt=−3 when x=π8. Enter the exact answer. dydt= Number

answer: 15

step-by-step explanation:

109 trust me

step-by-step explanation:

true

explanation:

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.