Assam Board (SEBA / AHSEC) - Class 9

Secondary Math question bank (Mathematics (গণিত - ৯))

Practice 541 free Assam Board (SEBA / AHSEC) - Class 9 Mathematics (গণিত - ৯) - Secondary Math questions with answers and step-by-step solutions.

Q1.

দ্বিঘাত সমীকৰণ: 'বাস্তৱ সংখ্যা (Real Numbers)' সমীকৰণ $ax^2 + bx + c = 0$ ৰ ভেদ নিৰূপক $D = b^2 - 4ac > 0$ হ'লে মূল দুটাৰ প্ৰকৃতি কি হ'ব?

(A)

বাস্তৱ আৰু অসমান (বাস্তৱ সংখ্যা (Real Numbers))

(B)

বাস্তৱ আৰু সমান

(C)

অবাস্তৱ বা কাল্পনিক

(D)

ওপৰৰ এটাও নহয়

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Q2.

সমান্তৰ প্ৰগতি (AP): 'বাস্তৱ সংখ্যা (Real Numbers)' প্ৰগতিত প্ৰথম পদ $a$ আৰু সাধাৰণ অন্তৰ $d$ হ'লে $n$-তম পদ $a_n$ ৰ সূত্ৰ কি?

(A)

$a_n = a + (n-1)d$ আৰু $S_n = \frac{n}{2}[2a + (n-1)d]$ (বাস্তৱ সংখ্যা (Real Numbers))

(B)

$a_n = a + nd$

(C)

$a_n = a - nd$

(D)

ওপৰৰ এটাও নহয়

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