sec theta = cosec(theta - 40). find the value of theta
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Answer:
65
Step-by-step explanation:
sec∅ =cosec(∅ -40)
cosec(90-∅ )=cosec(∅ -40)
[sec∅=cosec(90-∅)]
90-∅ =∅ -40
90+40=∅+∅
130=2∅
∅ =130/2=65
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