Prove that-sec2-cot2-90-cos2-90-cos2- -2 Marks-

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Domain and Range of Trigonometric Ratios

Prove that:se...

Question

Prove that:
$s e c^{2} θ - c o t^{2} (90 ° - θ) = c o s^{2} (90 ° - θ) + c o s^{2} θ$ [2 Marks]

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s i n^{2} θ - c o s^{2} θ

\frac{s i n θ - 2 s i n^{3} θ}{2 c o s^{3} θ - c o s θ} = t a n θ

\frac{s i n θ - 2 s i n^{3} θ}{2 c o s^{3} θ - c o s θ} = t a n θ

\frac{c o s e c θ}{(c o s e c θ - 1)} + \frac{c o s e c θ}{(c o s e c θ + 1)} = 2 s e c^{2} θ

\frac{c o s e c θ}{(c o s e c θ - 1)} + \frac{c o s e c θ}{(c o s e c θ + 1)} = 2 s e c^{2} θ

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