4 years ago

Cosθ=-√2/3 , where π≤θ≤3π/2 .

Mathematics

1 answer:

Law Incorporation [45]4 years ago

6 0

Answer:

Cosθ= -√2/3

Sinθ= -√7/3

tanβ= 4/3

Sinβ= 4/5

Cosβ= 3/5

sin(θ+β) = sin(θ)cos(β)+cos(θ)sin(β)

(-√7/3)(3/5) + (-√2/3)(4/5)

-√7/5 - 4√2/15

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