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Qn #1251
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If cosθ = 4/5 and cosϕ = 12/13, θ and ϕ both in the fourth quadrant, the value of cos( θ + ϕ )is
A.
-16/65
B.
-33/65
C.
33/65
D.
16/65
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❓ Question: If cosθ = 4/5 and cosϕ = 12/13, θ and ϕ both in th... | TANCET Group Studies | Tancet Group Studies