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Aiswarya
Questions (2)
consider the arithmetic sequence 53,47,41 than what is the common difference and the algebraic expession of the given sequence
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The digits of a three digit number are in AP&their sum is 15.The number obtained by reversing the digits is 594 less than the
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Answers (1)
So,in the question it is given angle od incidence is 90 degree.(perpendicular to refracting surface ).Now since it is an equateral triangle each angle is 60 degree.As the light touches the 2 nd surface we can see a triangle there with angles 60 degree and
