If - is a positive acute such that sec -cosec 60- find the value of 2 cos 2-1

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Value of Standard Angle(30,60,90)

If θ is a pos...

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If θ is a positive acute such that sec θ = cosec 60°, find the value of 2 cos² θ − 1.

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If $θ$ is a positive acute angle such that sec $θ = c o s e c 60^{o}$ ,find the value of 2 $c o s^{2} θ - 1$

If $θ$ is a positive acute angle such that $s e c θ = c o s e c 60^{\circ}$ , find the value of $2 c o s^{2} θ - 1$ .

θ

sec θ = csc 60^{\circ}

2 {cos}^{2} θ - 1.

θ

2 sin θ - \sqrt{3} sec θ + 1 = 0

sec θ \cdot sin (36^{o} + θ) = 1

θ

θ

36^{o} + θ

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