The sum of two numbers is 53. If twice the 1st number minus 3 times the second number is 26, find both numbers.
1 answer:
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Answer:
(a)Therefore the value of x=
(b) Therefore the value of x
Step-by-step explanation:
Horizontal tangent line: The first order derivative of a function gives the slope of the tangent of the function. The slope of horizontal line is zero.If the slope of tangent line is zero then the tangent line is called horizontal tangent line.
(a)
Given function is,
Differential with respect to x
For horizontal tangent line, f'(x)=0
3+ 3 cos x= 0
⇒3 cos x=-3
⇒cos x=-1
⇒x = 180°
Therefore the value of x=
(b)
Given that, the slope is 3.
Then,f'(x)=3
3+ 3 cos x= 3
⇒3 cos x= 3-3
⇒cos x=0
⇒x = 90°
Therefore the value of x
Answer:
Part a)
Steve's expression is
For x=3, the expression is equal to
Part b)
Jasmine's expression is
For x=2, the expression is equal to
Step-by-step explanation:
Part a)
Let
n-----> the first term
The expression is
substitute
Steve's expression is
Evaluate for x=3
Part b)
Let
n-----> the first term
Jasmine's expression is
Evaluate for x=2