Which of the following statements is true for the following pair of simultaenous equations ? x - y = 8 ; 3x - 3y = 16
If sin 3A = cos ( A - 26 ) where 3A is an acute angle , the value of A will be
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ABC and BDE are two equilateral triangles such that D is the midpoint of BC. The ratio of the area of the equilateral triangle ABC to the area of of BDE is
The modal class of a frequency distribution with equal intervals is 40 - 45 and its frequency is 7. The frequencies of its preceeding and successive classes are 3 and 6 respectively. The mode of this distribution is