Email
Chat with tutors
logo

Ask Questions, Get Answers

X
 
Questions  >>  EAMCET  >>  Mathematics
Answer
Comment
Share
Q)

If the angle $\theta$ between the vectors $\overrightarrow {a}=2x^2 \overrightarrow {i}+ 4x \overrightarrow {j}+ \overrightarrow {k}$ and $\overrightarrow {b}=7 \overrightarrow{i}-2 \overrightarrow {j}+x \overrightarrow {k}$ is such that $90^{\circ} < \theta <180^{\circ}$ then $x$ lies in the interval ::

\[\begin {array} {1 1} (1)\;\bigg(0,\frac{1}{2}\bigg) & \quad (2)\;\bigg(\frac{1}{2},1\bigg) \\ (3)\;\bigg(1,\frac{3}{2}\bigg) & \quad (4)\;\bigg(\frac{1}{2},\frac{3}{2}\bigg) \end {array}\]

1 Answer

Home Ask Tuition Questions
Your payment for is successful.
Continue
...