TS EAMCET 19-July-2022 Shift 2 Solved Paper
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Question : 33 of 160
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If the angle between the planes r ⋅ ( 11 i − 2 j + α k ) = 7 and r ⋅ ( 2 i + 4 j − 2 k ) = 5 is
, then α =
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