Answer:
Step-by-step explanation:
Hence, the result will be
you can put the scalar in to get
Answer:
View Image
x = π/6, 5π/6, 7π/6, 11π/6
Step-by-step explanation:
The only things you need to know are 2 things:
1.) 
, the exponent of trig functions are written in the middle
2.) 
, csc() is just the inverse of sin()
Answer:
D
Step-by-step explanation:
Answer:
D.) (−∞, −9]
Step-by-step explanation:
Range represents the set of values which the given function \[-5x^{2}+9\]
can assume. The function is quadratic and the square terms can only assume positive values. But the sign of the square term is negative so the overall square term with sign can only assume negative values. Maximum negative value possible is - infinity. Square term has the highest value of 0. On this case the value of the function becomes 9. So the range of the function is (−∞, −9].
Answer:
(2, -2)
Step-by-step explanation:
Given the equation
x - y = 4 ... 1
6x+y = 10 ...2
Add both expressions
x+6x = 4 + 10
7x = 14
x = 14/7
x = 2
Substitute x = 2 into equation 1;
From 1;
x - y = 4
2 - y = 4
y = 2-4
y = -2
Hence the solution to the system of equation is (2, -2)
