Answer:
The 3rd one is the answer
Step-by-step explanation:
For it to be a function, the x values all have to be different. For the 3rd one, -3 is repeated. Therefore it is the answer.
solution:
we know that ,
u.v = ΙuΙ ΙvΙcosθ
here,
θ =60° (since the given triangle is equilateral triangle)
u.v = ΙuΙ ΙvΙcos60°
= 1 x 1 x 1/2
u.v = 1/2
now, u.w = ΙuΙ ΙwΙcosθ
= ΙuΙ x cos(60x2)
u.w = -1/2
c
65
MOQ = RTN
Answer:2.8
