If (a,b,c,e) are four consecutive terms of an AP, which relation is always true?यदि (a,b,c,e) समांतर श्रेणी के लगातार चार पद हैं, तो कौन सा संबंध हमेशा सही है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (a+e=b+c)(a+e=b+c)
Taking the terms as (a,a+d,a+2d,a+3d), both sides become (2a+3d). In exams, test relations by writing symbolic AP terms.पद (a,a+d,a+2d,a+3d) मानने पर दोनों ओर (2a+3d) मिलता है। परीक्षा में प्रतीकात्मक पद रखकर संबंध जांचें।
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