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question mark

if x=2sinx/1=cosx+sinx
then, 1-cosx+sinx/1+sinx is equal to
A)1+x B)1-x
C)x D)1/x

Porash Chauhan , 7 Years ago
Grade 11
anser 1 Answers
Vikas TU

Last Activity: 7 Years ago

Given x=2sinx/1=cosx+sinx here "=" is given wrong it ought to be either – or + 
Considering = as – 
x=2sinx/1-cosx+sinx [ let x be equivalent to 90 degrees] 
x = 2(1)/1-0+1 => x=1 
Substituting x=90 degrees in 1-cosx+sinx/1+sinx the esteem will be 1-0+1/1+1 =1 
Thus 1-cosx+sinx/1+sinx=x 
Thus alternative c is reply. 

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