यदि (x) चौथे चतुर्थांश में है और \(\tan x=-\frac{24}{7}\), तो \(\cos x\) का मान क्या है?
If (x) is in the fourth quadrant and \(\tan x=-\frac{24}{7}\), what is the value of \(\cos x\)?
Explanation opens after your attempt
A. \(\frac{7}{25}\)
Concept
In the fourth quadrant, \(\cos x\) is positive and \(\sin x\) is negative. From the (7,24,25) triple, \(\cos x=\frac{7}{25}\).
Why this answer is correct
The correct answer is A. \(\frac{7}{25}\). In the fourth quadrant, \(\cos x\) is positive and \(\sin x\) is negative. From the (7,24,25) triple, \(\cos x=\frac{7}{25}\).
Exam Tip
चौथे चतुर्थांश में \(\cos x\) धनात्मक और \(\sin x\) ऋणात्मक होता है। (7,24,25) त्रिक से \(\cos x=\frac{7}{25}\) है।
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