Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 71-80 of 346 questions.
What is (\sin\(\theta-\pi\)) equal to?
B. -\(\sin \theta\)
(\sin\(\theta-\pi\)=-\sin \theta) होता है। \(\pi\) घटाने पर भी \(\sin \theta\) का चिह्न बदलता है। / (\sin\(\theta-\pi\)=-\sin \theta). Subtracting \(\pi\) also changes the sign of \(\sin \theta\).
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What is (\cos\(\theta-\pi\)) equal to?
C. -\(\cos \theta\)
(\cos\(\theta-\pi\)=-\cos \theta) होता है। \(\pi\) का अंतर \(\cos \theta\) का चिह्न बदल देता है। / (\cos\(\theta-\pi\)=-\cos \theta). A difference of \(\pi\) changes the sign of \(\cos \theta\).
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What is (\tan\(\theta-\pi\)) equal to?
D. \(\tan \theta\)
\(\tan \theta\) का काल \(\pi\) है इसलिए (\tan\(\theta-\pi\)=\tan \theta)। काल घटाने पर भी मान वही रहता है। / The period of \(\tan \theta\) is \(\pi\), so (\tan\(\theta-\pi\)=\tan \theta). Subtracting the period keeps the value same.
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What is (\sin\(2\pi-\theta\)) equal to?
A. -\(\sin \theta\)
(\sin\(2\pi-\theta\)=-\sin \theta) होता है। चौथे चतुर्थांश में \(\sin \theta\) ऋणात्मक होता है। / (\sin\(2\pi-\theta\)=-\sin \theta). In the fourth quadrant, \(\sin \theta\) is negative.
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What is (\cos\(2\pi-\theta\)) equal to?
B. \(\cos \theta\)
(\cos\(2\pi-\theta\)=\cos \theta) होता है। चौथे चतुर्थांश में \(\cos \theta\) धनात्मक होता है। / (\cos\(2\pi-\theta\)=\cos \theta). In the fourth quadrant, \(\cos \theta\) is positive.
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What is (\tan\(2\pi-\theta\)) equal to?
C. -\(\tan \theta\)
(\tan\(2\pi-\theta\)=-\tan \theta) होता है। चौथे चतुर्थांश में \(\tan \theta\) ऋणात्मक होता है। / (\tan\(2\pi-\theta\)=-\tan \theta). In the fourth quadrant, \(\tan \theta\) is negative.
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What is (\sec\(2\pi-\theta\)) equal to?
D. \(\sec \theta\)
\(\sec \theta\) \(\cos \theta\) का व्युत्क्रम है और चौथे चतुर्थांश में धनात्मक रहता है। इसलिए (\sec\(2\pi-\theta\)=\sec \theta) है। / \(\sec \theta\) is the reciprocal of \(\cos \theta\) and remains positive in the fourth quadrant. So (\sec\(2\pi-\theta\)=\sec \theta).
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What is (\cosec\(2\pi-\theta\)) equal to?
A. -\(\cosec \theta\)
\(\cosec \theta\) \(\sin \theta\) का व्युत्क्रम है और चौथे चतुर्थांश में ऋणात्मक होता है। इसलिए मान \(-\cosec \theta\) है। / \(\cosec \theta\) is the reciprocal of \(\sin \theta\) and is negative in the fourth quadrant. Therefore the value is \(-\cosec \theta\).
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What is the maximum value of \(\sin^2 \theta\)?
B. (1)
\(\sin \theta\) का मान ([-1,1]) में होता है इसलिए \(\sin^2 \theta\) का अधिकतम मान (1) है। वर्ग करने पर मान ऋणात्मक नहीं रहता। / The value of \(\sin \theta\) lies in ([-1,1]), so the maximum value of \(\sin^2 \theta\) is (1). Squaring makes the value non-negative.
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What is the minimum value of \(\cos^2 \theta\)?
C. (0)
\(\cos^2 \theta\) हमेशा (0) या धनात्मक होता है। इसका न्यूनतम मान (0) है। / \(\cos^2 \theta\) is always (0) or positive. Its minimum value is (0).
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