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calculate angle X

calculate angle X
The two straight lines CD and AB are parallel to each OAB = 60 OCD = 110 Angle X. Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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Maximum value of 2x+3y

If (x,y) lies on a circle of a radius 5 with the origin as its center, find the maximum value of (2x + 3y) Rate the problemHelpful (1)Spam (0)Hard (0)Wow (0)
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