CAT Question of the Day If n identical dice are rolled, how many different combinations are possible?
| OPTIONS | | |  | 1) | n + 5C5 | | | 2) | n + 6C6 | | | 3) | 6n | | | 4) | None of the above |
Tip of the Day There is no general formula for the sum of any number of quantities in harmonic progression. Questions in H.P. are solved by inverting the terms and making use of the properties of the corresponding A.P. Last year's Question of the day (02-Aug-11) The value of [(tan θ × sec 2θ) + (tan 2θ × sec 4θ) + (tan 4θ × sec 8θ) +…+ (tan 2n–1θ × sec 2nθ)] for n = 4 and θ = 60° is
| OPTIONS | | | | | 1) | 2√3 | | | 2) | √3 | | | 3) | –2√3 | | | 4) | 0 | | | 5) | –√3 |
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