Sec(90deg)
sec(x) is defined as 1/cos(x). If we measure x in degrees, then cos(90) = 0, and so sec(90) = 1/0, which is undefined
First, rearrange the quadratic equation:
5x² + 9x - 4 = 0
Now, compare it to the general quadratic equation:
a<span>x² + bx + c = 0
Therefore you get:
a = +5
b = +9
c = -4
And the quadratic formula will be:
x = [-b +/- </span>√(b² - 4ac)] / 2a
= [ -5 +/- √(81 - 4·5·(-4))] / 2·5
= (-5 +/- √161) / 10
Answer:
check online for more information
Answer: AC
Matrix A is a 3x3
Matrix B is a 3x4
So the answer is a 3x4
410 365. 470. 430
348. 308. 400. 360
890. 792. 1020. 928
Step-by-step explanation:
