Answer:
Step-by-step explanation:I don't say u must have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me...
Answer:
C. (3,2)
Step-by-step explanation:
to begin the substitution method, we can begin by substituting the answer choice value into the given system or equations to determine if the values make the equation true.
the first choice is (2,1)
3(2) + 2(1) = 13
6 + 2 is not equal to 13. Therefore this answer choice is incorrect.
second choice (1,2)
3(1) + 2(2) = 13
3 + 4 is not equal to 13. This answer is also incorrect.
third choice (3,2)
3(3) + 2(2)
9 + 4 = 13 is true!
we can also substitute these x and y values for the equation underneath:
y = x - 1
2 = 3 - 1
2 = 2 is true! Therefore, C. (3,2) is correct!
Answer:
There is no solution for x.
Step-by-step explanation:
We are given that 
and we have to solve for x.
Let us assume that 
then 
........ (1)
Now, we know that for any value of x the value of cos x lies between 1 to - 1.
Hence, 
for all x.
⇒ 
Now, for , the value of 
can never be equal to 1.
Hence, there is no solution for x. (Answer)
