RRB Group D 10-Dec-2018 Shift 1 Solved Paper

Question : 28 of 100

Marks: +1, -0

If sin θ= cos θ, then sec θ= ?

Solution:

sin θ= cos θ
⇒tan θ=1
sec θ=

√{1+tan^2θ}=√{1+(1)^2}=√2

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