 Hello and welcome to the session. My name is Mansi and I'm going to help you with the following question. The question says find the derivative of the following function 5 sin x minus 6 cos x plus 7. Let us start with the solution to this one. fx given to us is 5 sin x minus 6 cos x plus 7. f dash x will be 5 into d by dx of sin x minus 6 into d by dx of cos x plus 7 into d by dx of 1. We can write it as this or we can simply write it as plus 7 into x raised to power 0. Now we know that if fx is equal to this function minus this function plus this function and f dash x will be a derivative with respect to x of this function minus derivative with respect to x of this function plus derivative with respect to x of this function. So this will be equal to 5 into d by dx of sin x is cos x minus 6 into d by dx of cos x is minus sin x plus this will be 0 because d by dx of x raised to power 0 will be 0 into x raised to power 0 minus 1. So this becomes 0. So our answer to this question is 5 cos x plus 6 sin x. I hope that you understood the question and enjoyed the session. Have a good day.