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2. Trigonometry
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Q1 of 164 Page 50

Find the value of the following.

cot 400 20’

The relevant part of the cotangent table is given below.



From the table, we have


cot 40° 20’ = 1.17777 ≈ 1.1778


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1

Find the value of the following.

cot 20o

1

Find the value of the following.

cot 20o

1

Find the value of the following.

cot 400 20’

2

Find the value of θ, if

(i) sinθ= 0.7009


(ii) cos θ = 0.9664


(iii) tan θ = 0.3679


(iv) cotθ = 0.2334


(v) tanθ = 63.6567

Questions · 164
2. Trigonometry
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