
Differentiate both sides wrt
:

By the chain rule, we get


Solve for
:


Zero is like a negative number. It is mathematically impossible to subtract across zeros
the value of x is 20
Step-by-step explanation:
hope it helps you!
Answer:
The answer of this question is 78°.
Step-by-step explanation:
Let angle X be denoted by y then angle Z=y (because isosceles angles of a traingle is equal)
Now,
y+y+24°=189°
2y+24°=180°
2y=180°-24°
y=156/2
y=78°