Question

*If 13 cos A = 5, then what is the value of tan A?*

1️⃣ 5/13
2️⃣ 13/5
3️⃣ 12/5
4️⃣ 5/12

Answer 1

13 cos A =5

cos A =5/13

cos A=b/h=5/13

base = 5, hypotenus = 13

now by pythagorus theoram,

(p)^2 = (13)^2 - (5)^2,

p^2 = 169 -25

p= √144

p=12

tan A = p/b

tan A= 12/5....answer

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