Question

Plzzzzzzz solve it .....full explanation....... otherwise get lost ​

Answer 1

Given

p = (2,1)

to find new coordinate

x = acos@ + bsin@

since

@ = 30°

(a,b) = (1,2)

x = 2sqrt3/2 + 1/2

x = (2sqrt3 + 1)/2

For y

y = acos@ - bsin@

y = 1cos30 - 2sin30

y = (-2 + sqrt3)/2

so option B is right