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![[Post New]](/templates/default/images/icon_minipost_new.gif) 16 Jul 2008 17:44:56 IST
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If  then find  . I know you all know it.
IT IS FROM SL LONEY PLAIN TRIGONOMETRY.
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16 Jul 2008 19:01:04 IST
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Click the image
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"Before you start some work, always ask yourself three questions - Why am I doing it, What the results might be and Will I be successful. Only when you think deeply and find satisfactory answers to these questions, go ahead."
Chanakya quotes (Indian politician, strategist and writer, 350 BC-275 BC) |
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17 Jul 2008 17:31:13 IST
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The answer is given sin theta=2x(x+1)/2x^2+2x+1 and cos theta=2x+1/2x^2+2x+1
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17 Jul 2008 17:39:10 IST
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Expand the denominator and take square root.
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17 Jul 2008 17:47:14 IST
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Can you please tell the entire method....
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17 Jul 2008 17:55:11 IST
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I am explaining the denominator alone.
root ((2x(x+1))2+(2x+1)2
=root((2x2+2x)2+(2x+1)2
=root(4x4+4x2+8x3+4x2+1+4x)
=root(4x4+8x3+8x2+4x+1)
=root( (2x2+2x+1)2
=2x2+2x+1
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