Question

find the principal and general solutions of the given equation ?

secx = 2

Answer 1

solution

sec x = 2 = sec60°

or cos x = 1 / 2 = cos 60°

so,

principal value = 60° = π / 3 radians

for

cos θ = cos α


θ = 2nπ + α

general formula of x = 2nπ + π / 3


be brainly

Answer 2

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