Verify the identity.
cot(x) - π/2 = -tan(x)...
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The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22
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Yvaries directly as x. y =90 when x=6. find y when x=13
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