In a quadratic equation of the form (ax^2 + bx + c), the discriminant is equal to (b^2 - 4ac).
So for the first question it would be
4^2 - 4*(6*-2) = 64
Second question (-7)^2 - 4*(9*5) = -131
You can do the rest.
Answer:
14
Step-by-step explanation:
35/2.5
Answer:
I think it is B
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
A sin 2.355/2.355 =0.01745240644 cos -2.355/2.355 root square
=180 so untrue not-1
B. sin =0.01745240644 cos = 0 so untrue not 1.
C sin = 0.01745240644 cos = 180 so untrue not 1
D = - 2.355/2.355= 0.01745240644 cos = 0.01745240644 = -1 so true.
As if we divide 1 into -1 = 1
When we divide 0.01745240644 / 0.01745240644 = will also = 1
The answer is -1 as inverse.