When the incoming action potential activates a Ca²⁺ channel in the T-tubule membrane, it triggers the: 

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#Question id: 5158

#General Aptitude

Find the unit digit in 1! + 2! + 3! + 4! +.................... + 50!

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#Question id: 5159

#General Aptitude

the last digit of the number 3^2016 is

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#Question id: 5160

#General Aptitude

The last digit of the number 3²⁰¹⁵ is

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#Question id: 5161

#General Aptitude

Find the unit digit of 83 × 87 × 93 × 59 × 61.