Odisha Board - Class 9

Secondary Math question bank (Mathematics (ମାଧ୍ୟମିକ ବୀଜଗଣିତ ଓ ଜ୍ୟାମିତି - ୯))

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Q1.

ମାଧ୍ୟମିକ ବୀଜଗଣିତ (BSE Odisha HSC Board): 'ବାସ୍ତବ ସଂଖ୍ୟା (Real Numbers)' ସହସମୀକରଣର ଅନନ୍ୟ ସମାଧାନ ଶର୍ତ୍ତ କ’ଣ?

(A)

$\frac{a_1}{a_2} \neq \frac{b_1}{b_2}$ (ବାସ୍ତବ ସଂଖ୍ୟା (Real Numbers))

(B)

$\frac{{a_1}}{{a_2}} = \frac{{b_1}}{{b_2}} = \frac{{c_1}}{{c_2}}$

(C)

$\frac{{a_1}}{{a_2}} = \frac{{b_1}}{{b_2}} \neq \frac{{c_1}}{{c_2}}$

(D)

ଏଥିମଧ୍ୟରୁ କୌଣସିଟି ନୁହେଁ

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Q2.

ଦ୍ୱିଘାତ ସମୀକରଣ (Quadratic Equations): ସମୀକରଣ $ax^2 + bx + c = 0$ ର ପ୍ରଭେଦକ (Discriminant) 'ବାସ୍ତବ ସଂଖ୍ୟା (Real Numbers)' କ’ଣ?

(A)

$D = b^2 - 4ac$ (ବାସ୍ତବ ସଂଖ୍ୟା (Real Numbers))

(B)

$D = b^2 + 4ac$

(C)

$D = 4ac - b^2$

(D)

$\sqrt{{b^2 - 4ac}}$

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