Answer:
While factoring may not always be successful, the Quadratic Formula can always find the solution. The Quadratic Formula uses the "a", "b", and "c" from "ax2 + bx + c", where "a", "b", and "c" are just numbers; they are the "numerical coefficients" of the quadratic equation they've given you to solve.
source from: https://www.purplemath.com/modules/quadform.htm
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Csc a - sin a = cos a cot a
1/sin a - sin a = cos a (cos a / sin a)
(1 - sin^2 a)/sin a = cos^2 a/sin a
cos^2 a/sin a = cos^2 a/sin a
Therefore, the given equation is an identity.
Answer:
one
Step-by-step explanation:
The maximum number of y intercepts a line can have is one
A line can only cross the y axis one time
A line can only cross the x axis one time
Otherwise it is not linear
Answer:
7.07
Step-by-step explanation:
5sin90=xsin45
5/sin45=7.07