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Define light? Define Reflection? Reflection is the phenomenon of bouncing back of light in the same medium in which it was travelling when it falls on the surface. Important terms Incident ray The Ray of light that falls on the mirror reflecting surface is called Incident ray. Point of incidence…
Chapter 9: Algebraic Expressions and Identities Ex 9.1 1. Identify the terms, their coefficients for each of the following expressions. (i) 5xyz2 – 3zy(ii) 1 + x + x2(iii) 4x2y2 – 4x2y2z2 + z2(iv) 3 – pq + qr – rp(v) + – xy(vi) 0.3a – 0.6ab + 0.5b 2. Classify the following polynomials as monomials,…
Chapter 15: Introduction to Graphs Ex 15.1 1. The following graph shows the temperature of a patient in a hospital, recorded every hour. (a) What was the patient’s temperature at 1 p.m.? (b) When was the patient’s temperature 38.5° C? (c) The patient’s temperature was the same two times during the…