Which of the following expressions is equivalent to 7(2-4n)
2 answers:
You might be interested in
Answer:
t ≈ 0.0664731
Step-by-step explanation:
Use the inverse sine function.
sin(12t) = 141/197
12t = arcsin(141/197)
t = arcsin(141/197)/12
t ≈ 0.0664731 . . . . . . . radians
__
This is the principal value. There are other solutions at values of t that have integer multiples of π/6 added to this. There are also solutions where any of those values is subtracted from π.
_____
In general, angles in math are assumed to be in radians, unless specified otherwise. This angle corresponds to about 3.81°. (In geometry, the usual assumption is that angles are measured in degrees.)
Answer:
Step-by-step explanation:
The given expression is
We will rewrite the expression
When we add the fraction
=
= 8
While Andre says the answer is
because Andre added the denominator where he has to make a common denominator that should be 4 instead of 8.
Andre made mistake in this step
Picture is given below :
