यदि \( \theta \) तीसरे चतुर्थांश में है और उसका संदर्भ कोण \(35^\circ\) है तो \( \theta \) का मुख्य मान क्या है?
If \( \theta \) is in the third quadrant and its reference angle is \(35^\circ\), what is the principal value of \( \theta \)?
Explanation opens after your attempt
B. \(215^\circ\)
Concept
In the third quadrant the principal angle is \(180^\circ+35^\circ=215^\circ\). Add or subtract the reference angle according to the quadrant.
Why this answer is correct
The correct answer is B. \(215^\circ\). In the third quadrant the principal angle is \(180^\circ+35^\circ=215^\circ\). Add or subtract the reference angle according to the quadrant.
Exam Tip
तीसरे चतुर्थांश में मुख्य कोण \(180^\circ+35^\circ=215^\circ\) होगा। चतुर्थांश के अनुसार संदर्भ कोण जोड़ें या घटाएं।
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