If 3-5 then find cos-

Given that, 3θ=5 ⇒θ=53 ⇒1cosθ=53 #160;since, #160; θ=1cosθ ⇒cosθ=35 ...

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Sum of n Terms

If 3θ=5 the...

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If $3 sec θ = 5$ then find $cos θ$

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3 sec θ = 5

tan θ

If sin 3 $θ$ = cos( $θ$ - $26^{\circ}$ ), where 3 $θ$ and( $θ$ - $26^{\circ}$ ) are acute angles then find the value of $θ$ .

cos θ + sec θ = \sqrt{3}

{cos}^{3} θ + {sec}^{3} θ =

x = sec θ - cos θ

y = {sec}^{3} θ - {sec}^{3} θ - {cos}^{3} θ,

{(\frac{d y}{d x})}^{2}

x = 0,

If cos $3 θ = c o s θ - 6^{o}$ ,where 3 $θ$ and $θ - 6^{o}$ are acute angles, find the value of $θ$

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