Question

Answer this question

Answer 1

dis krap is too hard

Step-by-step explanation:

cos x = a·b / |a|·|b|

|a| = √3² + 5² = √9 + 25 = √34 = 2√17

|b| = √2² + 6² = √4 + 36 = √40 = 2√10

a.b = 3*5 + 2*6 = 15 + 12 = 27

a.b / |a|.|b| = 27 / 2√17 * 2√10 = 27 / 4√170 = 27 / 4 * ~13,03

a.b / |a|.|b| = 27 / ~52,15 = ~0,51

x =
`cos^(-1)`(0,51)

x = ~59.33º =~60º???