The number of values of `theta` satisfying `4 cos theta+3 sin theta=5` as well as `3 cos theta + 4 sin theta = 5` is
A. one
B. two
C. zero
D. none of these
A. one
B. two
C. zero
D. none of these
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Correct Answer – C
On adding given equations, we get
`7(cos theta+ sin theta)=10`
or `cos theta+ sin theta=10/7`
But maximum value of `cos theta+ sin theta=sqrt(1^(2)+1^(2))=sqrt(2) lt 10/7`.
So, no `theta` is possible.