1.

If for real values of x, cosθ=x+1x, then(a) θ is an acute angle(b) θ is a right angle(c) θ is an obtuse angle(d) No value of θ is possible

Answer» If for real values of x, cosθ=x+1x, then

(a) θ is an acute angle

(b) θ is a right angle

(c) θ is an obtuse angle

(d) No value of θ is possible


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