Answer:
Step-by-step explanation:
We know the property of derivative: 
Given function : 
Differentiate both sides with respect to x , we get

[By Chain rule]

[Since
, where a is scalar and
]

Hence, the derivative of the given function is
.
It is A.. Value of log2^100 is about 4 times the value of log6^20
Answer:
13
Step-by-step explanation:
cos(60) =building height / 26
Answer:
-5a<13
Step-by-step explanation:
15 is 16.66666 percent of 90.