if tanα + secα = x , prove that the value of tanα is x2- 1 / 2x …. .. … ..
if tanα + secα = x , prove that the value of tanα is x2- 1 / 2x …. .. … ..
SAMBHAV MISHRA , 5 Years ago
Grade 10
Trigonometry> if tanα + secα = x , prove that the value...
1 Answers
Arun
Last Activity: 5 Years ago
tanα + secα = x
hence secα – tanα = 1/x
hence now subtract the equations,
2 tanα = x – 1/x
tanα = (x2 - 1)/2x
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