Question

b) 200
The value of cot O when sec 0 =4, is
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Answer 1

Answer:

Answer

Given function: cot θ=2

Draw a right  △ABC,∠C=90  degrees and ∠=θ

We know that cotθ=BCAC=perpendicularbase=12

By pythagoras.Theorem

 AB2=BC2+AC2 

 

AB2=K2+4k2

 AB2=5k2

 AB=K√5

 Find other T-rations using their definations:

 sinθ=ABBC=(k√5)k=√51

 cosθ=ABAC=(k√5)(2k)=√52

 tanθ=ACBC=costhetasinθ=