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SecA + tanA = 5 is equivalent to secA - tanA = 1/5
True
SecA + tanA = 5 implies secA - tanA = 1/5
False
If SecA + tanA = 5, then secA - tanA cannot be calculated
False
Two vectors a and b are parallel then a.b=0
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The dot product of two parallel vectors is always zero
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If the dot product of two vectors is zero, it means they are parallel
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