India Languages, asked by KUSHAN4727, 10 months ago

α மற்றும் β என்பன 7x^2+ax+2=0 இன் மூலங்கள் மற்றும் β-α= -13/7 எனில் α மதிப்பு காண்க

Answers

Answered by steffiaspinno
0

a = +15  a = -15

விளக்கம்:

7x^{2}+a x+2=0

\beta-\alpha=\frac{-13}{7}

a=7, b=a, c=2

\alpha+\beta=\frac{-b}{a}=\frac{-a}{7}

\alpha \beta=\frac{c}{a}=\frac{2}{7}

\beta-\alpha=\frac{-13}{7}

இருபுறமும் வர்க்கம் எடுக்க

(\beta-a)^{2}=\left(\frac{-13}{7}\right)^{2}

\beta^{2}+\alpha^{2}-2 \alpha \beta=\frac{169}{49}

(\alpha+\beta)^{2}-2 \alpha \beta-2 \alpha \beta=\frac{169}{49}

(\alpha+\beta)^{2}-4 \alpha \beta=\frac{169}{49}

\frac{a^{2}}{49}-8 / 7=\frac{169}{49}

\frac{a^{2}-56}{49}=\frac{169}{49}

a^{2}=169+56

a^{2}=225

a = \sqrt{225}

a=\pm 15

a = +15  a = -15

Answered by shivam1104
0

Answer:

plz pls pls pls sorry to I can't understand that language I think it is mathematics

plz write in english and hindi language

I like mathematics

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