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In which option do the terms decrease equally but the common difference is not (-8)?किस विकल्प में पद समान मात्रा से घटते हैं लेकिन सार्व अंतर (-8) नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (81,72,63,54,\ldots)(81,72,63,54,\ldots)
The first three options have (d=-8), but (81,72,63,54,\ldots) has (d=-9). Check both value and sign in the options.पहले तीन विकल्पों में (d=-8) है, लेकिन (81,72,63,54,\ldots) में (d=-9) है। विकल्पों में मान और चिह्न दोनों देखें।
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