Let, Vishal invested Rs. x in scheme ‘X’ According to the question, {(x × 15 × 8)/100} = 3960 Or, x = 3960/1.2 Or, x = 3300 Total sum Vishal had = 3300/0.8 = Rs. 4125 Amount received from scheme ‘X’ = 3300 + 3960 = Rs. 7260 Amount received from scheme ‘Y’ = 7260(1 + 50/100)2 = Rs. 16335
Find the value of cos 15° × cos 75° + sin 15° × sin 75°:
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A regular hexagon has a side length of 6 units. What is the area of the hexagon?
