negative 56 is the awenser
Taking the derivative of both sides with respect to
gives
![\dfrac{\mathrm d}{\mathrm dx}[x^2]=\dfrac{\mathrm d}{\mathrm dx}[-2+y+5\cos y]](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Cmathrm%20d%7D%7B%5Cmathrm%20dx%7D%5Bx%5E2%5D%3D%5Cdfrac%7B%5Cmathrm%20d%7D%7B%5Cmathrm%20dx%7D%5B-2%2By%2B5%5Ccos%20y%5D)
![\implies2x=\dfrac{\mathrm dy}{\mathrm dx}-5\sin y\,\dfrac{\mathrm dy}{\mathrm dx}](https://tex.z-dn.net/?f=%5Cimplies2x%3D%5Cdfrac%7B%5Cmathrm%20dy%7D%7B%5Cmathrm%20dx%7D-5%5Csin%20y%5C%2C%5Cdfrac%7B%5Cmathrm%20dy%7D%7B%5Cmathrm%20dx%7D)
![\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2x}{1-5\sin y}](https://tex.z-dn.net/?f=%5Cimplies%5Cdfrac%7B%5Cmathrm%20dy%7D%7B%5Cmathrm%20dx%7D%3D%5Cdfrac%7B2x%7D%7B1-5%5Csin%20y%7D)
When
, we have two possible values of
:
![x^2=-2+11+5\cos11\implies x=\pm\sqrt{9+5\cos11}\approx\pm3.004](https://tex.z-dn.net/?f=x%5E2%3D-2%2B11%2B5%5Ccos11%5Cimplies%20x%3D%5Cpm%5Csqrt%7B9%2B5%5Ccos11%7D%5Capprox%5Cpm3.004)
so we have two possible values
.
Yes it does mean that. As long as a number is next to a number with parenthesis with no sign in between, consider it as multiplication.
Answer:
x=49
Step-by-step explanation:
right on edge.......Faxtuu
2 to the 4th power 3 to the 4th power and 5 to the 3rd power