sec theta = x + 1/x , prove that sec theta * tan theta = 2x
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Answered by
30
sec a= x+1/x=(x²+1)/x
tan a= 2x²/x²+1
putting the value
sec a. tan a= x²+1/x×2x²/x²+1=2 x answer proved..
Hope this will help u...Plz mark it as brainliest...
tan a= 2x²/x²+1
putting the value
sec a. tan a= x²+1/x×2x²/x²+1=2 x answer proved..
Hope this will help u...Plz mark it as brainliest...
Answered by
7
sec¤ = x + 1/x
sec¤.tan¤ = 2x
sec¤ = x^2 + 1/x
tan¤ = 2x^2/x^2 + 1
putting the values.
sec¤.tan¤ = 2x
x^2 + 1/x *2x^2 /x^2 +1 = 2x
2x^2/x = 2x
2x = 2x
----------------------Hence Proved --------------------
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