2sin^2x - sinx - 3 = 0
1 answer:
We have that
2sin²<span>x - sinx - 3 = 0
</span>
Let
A------> sin x
so
2A²-A-3=0
using a graph tool-----> to resolve the second order equation
see the attached figure
the solutions are
A=-1
A=1.5------> is not solution because sin x <span>can not be 1.5
the solution is
A=-1
therefore
sin x=-1
x=arc sin(-1)=-90</span>°
the answer is
sin x=-1
x=-90° or 270°
2sin²<span>x - sinx - 3 = 0
</span>
Let
A------> sin x
so
2A²-A-3=0
using a graph tool-----> to resolve the second order equation
see the attached figure
the solutions are
A=-1
A=1.5------> is not solution because sin x <span>can not be 1.5
the solution is
A=-1
therefore
sin x=-1
x=arc sin(-1)=-90</span>°
the answer is
sin x=-1
x=-90° or 270°
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Answer:
10
Step-by-step explanation:
We have a monomial in 3 variables: f, g and h. Whenever a monomial has more than one variable, the degree is calculated as the sum of exponents of all the variables involved. The given monomial is:
The exponent of f is 2, exponent of g is 3 and exponent of h is 5.
The degree of this monomial would be the sum of all these three exponents.
So, the degree of given monomial is:
Degree = 2 + 3 + 5
Degree = 10