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kevinvalencia01
20.10.2019 •
Mathematics
If = 1 and a > 0, find the value of
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Ответ:
Some factoring lets us write
Then
Taking the cube root to solve for
, we find
so ultimately
Ответ:
The value of the given expression is 1 - 1 = 0
Step-by-step explanation:
8a^{3b} = 1 can be rewritten as (8a³)^b = 1 = (8a³)^0, which indicates that b = 0. If b= 0, then 2b = 2(0) = 0.
Then a^(2b) = a^0 = 1, and 1/a^b = 1/1 = 1.
Thus, the value of the given expression is 1 - 1 = 0
Ответ:
a = sqrt(2)
Step-by-step explanation:
This is a right triangle so we can use trig functions
sin theta = opp / hyp
sin 30 = a / 2 sqrt(2)
2 sqrt(2) sin 30= a
2 sqrt(2) * 1/2 =a
sqrt(2) =a