If sec 0 = x + -- then prove that s...
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If sec 0 = x + -- then prove that sec 0 + tan 0 = 2x or

11th - 12th Class
Maths
Solution
145
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( sec theta=x+frac{1}{4 x} ) ( sec ^{2} theta=x^{2}+frac{1}{(4 x)^{2}+2 x x+4} ) ( 1+tan ^{2} theta=x^{2}+frac{1}{(4 x)^{2}}+frac{1}{2} ) ( tan ^{2} theta=x^{2}+frac{1}{(4 x)^{2}-frac{1}{2}} ) ( tan theta=x-frac{1}{4 x} ) ( sec theta+tan theta=x+frac{1}{4 x}+x-frac{1}{4 x}=2 x )
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