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Question

In Fig. 3, AD = 4 cm, BD = 3 cm and CB = 12 cm, then cot θ equals

(a) 34

(b) 512

(c) 43

(d) 125

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Solution

In Fig 3, if we have

AD = 4 cm,

BD = 3 cm, and

CB = 12 cm, then

cot θ = ?

We have the following diagram

If we apply Pythagoras theorem in triangle ADB, we get

Now,

Hence the correct option is


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