MHB Proving an Inequality: $(\sin\, x)^{\sin\, x}\,<(\cos\, x)^{\cos\, x}$

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For the interval \(0 < x < \pi/4\), the inequality \((\sin\, x)^{\sin\, x} < (\cos\, x)^{\cos\, x}\) holds true. This can be demonstrated by analyzing the behavior of the functions involved, where \(\sin\, x\) increases and \(\cos\, x\) decreases within this range. The proof involves taking the logarithm of both sides and using calculus to show that the derivative of the left side is less than that of the right side. As a result, the inequality is consistently satisfied for the specified interval. Thus, \((\sin\, x)^{\sin\, x} < (\cos\, x)^{\cos\, x}\) is proven for \(0 < x < \pi/4\).
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One of the 2 inequalities

$(\sin\, x)^{\sin\, x}\,<(\cos\, x)^{\cos\, x} $ and $(\sin\, x)^{\sin\, x}\,>(\cos\, x)^{\cos\, x} $ is always true for all x such that $0 \,< \, x \, < \pi/4$ Identify the inequality and prove it
 
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kaliprasad said:
One of the 2 inequalities

$(\sin\, x)^{\sin\, x}\,<(\cos\, x)^{\cos\, x} $ and $(\sin\, x)^{\sin\, x}\,>(\cos\, x)^{\cos\, x} $ is always true for all x such that $0 \,< \, x \, < \pi/4$ Identify the inequality and prove it
$(\sin\, x)^{\sin\, x}\,<(\cos\, x)^{\cos\, x} $
for :$0\,<\,x<\,\pi/4$
$sin\, x < cos \,x$
if $a<b$ then
$a^a<b^b$
(here :$a>0 ,\,and \,\, b>0)$
 
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