Question

is it necessary to use first principle formula in derivatives of trignometric functions??(class 11 ncert)

Answer 1

Answer:

for ur exam purpose it is necessary

and if ur are preparing for competitive than it is not mandatory

i hope it will help u, mark it as brainliest answer and follow me ❣️❣️❣️❣️

Answer 2

Answer:

yes it is necessary

here are some formulas

ddx sin(x) = cos(x)

ddx cos(x) = −sin(x)

ddx tan(x) = sec2(x)