Q) Find the image A^′ of the point A(2,1,2) in the line 𝑙:r =4i +2j +2k +𝜆(i −j −k ). Also, find

Q) The integrating factor of the differential dx/dy = x log x / ( 2/x log x - y )

Q) Verify that lines given by 𝑟 =(1−𝜆)𝑖 +(𝜆−2)𝑗 +(3−2𝜆)𝑘and 𝑟 =(𝜇+1)𝑖 +(2𝜇−1) 𝑗 −(2𝜇+1

Q) Find the angle between the two lines whose equations are 2𝑥=3𝑦=−𝑧 and 6𝑥=−𝑦=−4𝑧.

Q) Find a point P on the line (𝑥+5)/1=(y+3)/4=(z−6)/(−9) such that its distance from point

Class 7 maths practice set 47 | Std 7 practice set 47 maths | State board #class7

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