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Consider the statement: p: If x is rea...

Consider the statement:
p: If x is real number such that `x^(3)+4x=0`, then x=0, prove that p is true statement, using
(a) method of contradication and
(b) method of contrapositive

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CHHAYA PUBLICATION-MISCELLANEOUS EXAMPLES-HS (XI) AND WBJEE 2018 (GROUP - C)
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  13. Evaluate : lim(xto(pi)/(4))(4sqrt2-(cosx+sinx)^(5))/(1-sin2x)

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  15. Consider the statement: p: If x is real number such that x^(3)+4x=0,...

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