Q3 of 45 Page 138

If tan θ = 2, find the values of other trigonometric ratios.

We know that,


sec2θ= 1 + tan2θ


⇒ sec2θ = 1 + (2)2


⇒ sec2θ = 5


⇒ sec θ = √5 …[1]


Also,



…[2]


Now, using





…[3]


Also,


…[4]


….[5]


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