1.

(ग) यदि tan 2A = cot (A - 189) है, जहाँ2A न्यून कोण है,A का मान ज्ञात कीजिए।

Answer»

tan2A=cot(A-18)cot(90-2A)=cot(A-18)90-A= 2A-1890+18=A+2A108/3=A36°=AA= 36°

i solved your question your answer is A=36 please like and choose best



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