Bx = B . Cos θ

-6 = B. Cos θ

B = -6 / cos θ

By = B. Sin θ

-6 = B. Sin θ

B= -6 / sin θ

−6

cos θ=

−6

sin θ

sin θ

cos θ=

−6

−6

sin θ

cos θ= 1

tan 𝜃 = 1

Θ= arc tan 1 = 45o

Untuk cari nilai B, maka

Bx = B . Cos θ

-6 = B. Cos 45

-6 = B . 1

2√2

B = −6.2

√2 = - 6√2