Question

Hi, I am Sanket and I want to confirm about the latest maths syllabus for 10 boards 2019-2020 ? because CBSE has said that Ncert syllabus will not come ??????????????

CBSE Class 9th Science Book Chapter 3

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  P.t.root2 +root3 is an irrational is

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  P.t.root2 +root3 is an irrational is

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  P.t.root2 +root3 is an irrational is

A student has focused the image of a candle flame on a white screen using a concave mirror. The situation is as given below: length of the flame = 1.5cm Focal length of the mirror = 12cm Distance of flame from the mirror = 18cm if the flame is perpendicular to the principal axis of the mirror, then calculate the following: (a) Distance of image from the mirror. (b)Length of the image If the distance between the mirror and the flame is reduced to 10cm, then what would be observed on the screen? Draw ray diagram to justify your answer for this situation

If cos(3x-10) = since then the value of x is

1st pu NCRT