[" 13.If "e^(cos x)-e^(-cos x)=4" ,then ...

[" 13.If "e^(cos x)-e^(-cos x)=4" ,then the value of "cos x" is "],[[" (a) "log_(c)(2+sqrt(5))," (b) "-log_(c)(2+sqrt(5))],[" (c) "log_(c)(-2+sqrt(5))," (d) none of these "]]

[" 13.If "e^(cos x)-e^(-cos x)=4" ,then the value of "cos x" is "],[["...
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The value of 3^((log)4 5)-5^((log)4 3) is 0 (b) 1 (c) 2 (d) none of...
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Number of solution satisfying, sqrt(5-(log)2x)=3-(log)2x are: 1 (b) 2 ...
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if x=2^(sqrt(5))*5^(sqrt(2)) then log(10)x=(sqrt(A)-sqrt(B))log(10)2+s...
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If (6)/(5)a^(A)-3^(B)=9^(C) where A=log(a)x*log(10)a log(a)5,B=log(10)...
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solve for x if log(4)log(3)log(2)x=0 and log(e)log(5)(sqrt(2x+2)-3)=0
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The value of e^(log(e)x+log(sqrt(2))x)+log(e^((1)/(3)))x+...+log(e^((1...
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The range of f(x)=log(sqrt(5))(sqrt(2)(sin x-cos x)+3) is
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sqrt(5-log(2)x)=3-log(2)x
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