If 4sin2Θ−1=0 and angle Θ is less than 90°, find the value of cos

1.	If 4sin2Θ−1=0 and angle Θ is less than 90°, find the value of cos2+tan2Θ ?
Answer» If $4 s i n^{2} Θ - 1 = 0$ and angle $Θ$ is less than 90°, find the value of $c o s^{2} + t a n^{2} Θ$ ?

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