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Find the value of 't' in …

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Find the value of 't' in ' h = ut - ½gt² ' without using quadratic equations formula

Posted by Kristi Bhowmik 2 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Kristi Bhowmik 2 years, 10 months ago

It's not the answer

0Thank You

Diksha Laniya🐥 2 years, 10 months ago

The given equation is x2+2(m−1)x+(m+5)=0 For the equation to have real and equal roots, the discriminant should be 0. ∴[2(m−1)]2−4(m+5)=0 ⇒4(m2−2m+1)=4(m+5) ⇒m2−3m−4=0 ⇒(m−4)(m+1)=0 ∴m=4 or m=−1

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