1.

When sec 0=5/4 then cos=?​

Answer»

ANSWER:

Cos∅ = 4/5

Step-by-step EXPLANATION:

ASSUME that ∅ is theta.

Then,

SEC ∅ = 1/cos∅

Cos∅ = 1/sec∅

⇒ Cos∅ = 1/5/4 = 4/5



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