4sin2θ = 1 ಮತ್ತು θ ಒಂದು ತೀಕ್ಷ್ಣ ಕೋನವಾಗಿದ್ದರೆ, cos2θ + tan2θ = ________.

1
13/12
2
5/13
3
1/3
4
1/4

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