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If (5\theta+20^\circ) and (\theta+140^\circ) are coterminal angles then what is the least positive value of (\theta)?यदि (5\theta+20^\circ) और (\theta+140^\circ) सहप्रारंभी कोण हैं तो (\theta) का सबसे छोटा धनात्मक मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (120^\circ)(120^\circ)
The difference (4\theta-120^\circ) must be a multiple of (360^\circ). For the least positive value (\theta=120^\circ).अंतर (4\theta-120^\circ) को (360^\circ) का गुणज होना चाहिए। सबसे छोटे धनात्मक मान के लिए (\theta=120^\circ) है।
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