TS EAMCET · Maths · Vector Algebra
If and are two vectors such that and then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given, a→ and b→ are two vectors such that a→=2i^+2j^+pk^, b→=7 Now given a→·b→=4 So, applying the formula we get, a→·b→=4⇒a→b→cosθ=4 ⇒8+p2×7cosθ=4 ⇒cosθ=478+p2…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- In a data, if the number \(i\) is repeated \(i\) times for \(i=1,2, \ldots, n\), then the mean of the data isTS EAMCET 2015 Easy
- \(\mathrm{PQR}\) is an isosceles triangle with \(\mathrm{PQ}=\mathrm{PR}\). If the radius of the circum circle of \(\triangle \mathrm{PQR}\) is equal to the length of \(\mathrm{PQ}\), then \(\angle \mathrm{P}=\)TS EAMCET 2023 Easy
- Let \(P(x)\) be a polynomial of degree 3 having extreme value at \(x=1\). If \(\lim _{x \rightarrow 0}\left(\frac{P(x)+4}{x^2}+2\right)=6\), then \(\left(\frac{d P}{d x}\right)_{x=\frac{1}{2}}=\)TS EAMCET 2020 Easy
- Suppose \(E\) and \(F\) are two events of a random experiment. If the probability of occurrence of \(E\) is \(1 / 5\) and the probability of occurrence of \(F\) given \(E\) is \(1 / 10\), then the probability of non-occurrence of atleast one of the events \(E\) and \(F\) isTS EAMCET 2004 Medium
- The mean and standard deviation of a binomial variate \(X\) are 4 and \(\sqrt{3}\) respectively. Then \(P(X \geq 1)\) is equal toTS EAMCET 2007 Easy
- The number of non-constant functions from to such that for and isTS EAMCET 2019 Medium
More PYQs from TS EAMCET
- The ends of an element of zinc wire are kept at a small temperature difference \(\Delta T\) and a small current \((I)\) is passed through the wire. Then, the heat developed per unit timeTS EAMCET 2013 Easy
- The voltage gain of a transistor in common emitter configuration is 160 . The resistances in base and collector sides of the circuit are 1 kW and 4 kW respectively. If the change in base current is \(100 \mu \mathrm{~A}\), then the change in output current isTS EAMCET 2024 Hard
- The area (in square units) of the quadrilateral formed by the point of intersection of the lines \(x+y-1=0, x-y+1=0\), the point \((1,1)\) and the feet of the perpendiculars from this point on to the lines isTS EAMCET 2020 Easy
- Consider a particle moving along the positive direction of -axis. The velocity of the particle is given by ( is a positive constant). At time , if the particle is located at , the time dependence of the velocity and the acceleration of the particle are respectively.TS EAMCET 2018 Medium
- Which of the following is a lyophobic colloidal solution?TS EAMCET 2004 Easy
- \(\int_{-1}^1 \frac{\cosh x}{1+e^{2 x}} d x\) is equal to :TS EAMCET 2006 Medium