If cos 2θ+cos 8θ= cos 5θ then θ=
Which of the following statements is NOT correct?
A: If a, b, c are vectors such that [a b c]=4 then [axb bxc cxa]=64
R: [axb bxc cxa]=[a b c]2
The points(1,2,3),(2,3,1),(3,1,2) form
100 tickets are numbered as 00, 01, 02,...,09, 10, 11,...99. When a ticket is drawn at random from them and if A is the event of getting 9 as the sum of the numbers on the ticket, then P(A)=
A line which makes an acute angle ? with the possitve direction f x-axis is drawn through the point P(3, 4) and cuts the curve =4x at Qand R . The lengths of the segments PQ and PR are numerical values of the roots of the equation
The points on the ellipse x2/25+y2/9=1 whose angles differ by a right angle are
I: If a=3i-2j+k, b=2i-4j-3k, c=-i+2j+2k then a+b+c=4i-4j
II: If a=i-j+2k, b=2i+3j+k, c=i-k, then magnitude of a+2b-3c is √78
Which of the following is called Rosenmund reaction?
2 sin θ. tan θ(1-tan θ)+2 sin θ sec2 θ / (1+tan θ)2
The volume of the parallelepiped with edges (2, -3, 0), (1, 1, -1), (3, 0, -1) is