I'm kinda lost here, what do I do when the quadrant is given? CanI have some of these solved at least with steps?

See Explaination

Step-by-step explanation:

According To Question

(Diagram, Please Find In Attachment)

Question 38 . Cos ∅ = 12/13   ∅ in Quadrant-4(Where only Cos & Sec are Positive all other Functions Are Negative in this Quadrant)

Now ∅ Represent a Right Angle Triangle with Base=12 Perpendicular=5 & Hypothenese=13

Sin∅ = -5/13 , Cosec∅=-13/5 , Tan∅=-5/12 , Cot∅=-12/5 & Sec∅=13/12

Question 39 . SinX=-3/4   X Lies in Quadrant-3(Where only Tan & Cot are Positive all other Functions Are Negative in this Quadrant)

Find By Using Basic Formulas

↔ Put Value of Sin∅=-3/4

We get CosX= ± (but X Lies in Quadrant-3 Where Cosine Is Negative , So Neglect CosX= +)

So CosX= - ...... now you get the point . All Questions Will Solve like This .

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step-by-step explanation: