See below for the proof of the equation
<h3>How to prove the equation?</h3>
The equation is given as:
Take the LCM
Expand
Evaluate the like terms
Rewrite as:
Factorize the numerator
Divide
2(a - b)= 2(a - b)
Both sides are equal
Hence, the equation has been proved
Read more about equations at:
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Addition you add and in subtraction you subtract
Answer:
C
Step-by-step explanation:
Total Work hours = 3 1/2 hours
One routine physical routine requires: 1/3 hours.
Number of routines can be completed = Total work hours / Time required for one physical routine
=
= 10.5 routines.
In this case, we are unable to complete half a routine (0.5), so we will choose the highest possible whole number, in this case, its 10 routines.
Answer:
d
Step-by-step explanation:
cosA^2 = 1 - sinA^2
subtitute 1/4 below
= 1 - (1/4)^2
= 1 - 1/16
after calculation
= - 0.9682