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[" If "tan^(2)theta=1-k^(2)" then "sec t...

[" If "tan^(2)theta=1-k^(2)" then "sec theta+tan^(3)theta cosec theta=],[[" 1) "sqrt(2-k^(2))," 2) "sqrt(2+k^(2))" 3) "(2-k^(2))^(3/2)," 4) "(2+k^(2))^(3/2)]]

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