E4f Dx To Memorize

Question 1

Find the derivative:
f(x) = cos(x)

Answer 1

-sin(x)

Question 2

Find the derivative:
f(x) = tan(x)

Answer 2

sec^2

Question 3

Find the derivative:
f(x) = cot(x)

Answer 3

-cosec^2

Question 4

Find the derivative:
f(x) = sec(x)

Answer 4

sec(x) * tan(x)

Question 5

Find the derivative:
f(x) = cosec(x)

Answer 5

-cosec(x) * cot(x)