Answer:
-5
Step-by-step explanation:
8y-6y=-3-7
2y=-10
y=-10÷2
y=-5
Answer:
see explanation
Step-by-step explanation:
Differentiate using the product rule
Given y = f(x)g(x), then
= f(x). g'(x) + g(x). f'(x)
here f(x) =
⇒ f'(x) = 
g(x) = cosx ⇒ g'(x) = - sinx
Hence
=
(- sinx) + cosx 
=
cosx -
sinx
After 2 that x is equal to 67
M + n² = (2) + (-2)² = 2 + 4 = 6
Answer: 6