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Find the mean, variance and standard deviation of the number of heads in a simultaneous toss of three coins.

A pair of dice is thrown. Let E be the event that the sum is greater than or equal to 10 and F be the event 5 appears on the first – die. Find P(EE). if F is the event 5 appears on at least one die, find P(EF).

Find the derivative of tan−1(cosx−sinxcosx+sinx) with respect to ‘x’

Find the derivative of (1+cosx)x with respect to x.

Find the derivatives of

y=log10(√1−cosx1+cosx)

Find the derivative of y=sin(x+a)cosx.

Find derivative of given functions w.r.t the respective independent variable . y=(cosx)/(x)+x/(cosx) Find (dy)/(dx) as a function of x

Find the derivatives of the following :

y=xcosx

Find the derivative of x−cosxtanx with respect to x?

Find the derivative of xcosx with respect to x.

xsinx1+cosx का x के सापेक्ष अवकलज ज्ञात कीजिए |

Find the second order derivative of y = sinx + cosx with respect to x .

Find the derivative of x4+y4=cosx with respect to x

Find the derivative of cosx1+sinx with respect to x.

Find the derivative of y = x^(cosx) .