Sin²120+ cos²150° +tan²120° +cos 180°- tan135°
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This is to inform the students of class 6 & 7 that your history class will remain cancelled as ma'am is sick due to which she will not be able to take up the classes.As the syllabus is complete , students are requested to revise those portions at home. When the alternate arrangements of classes are made it will be informed , until further notification your history class will remain cancelled.-----Prasenjit gamer
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this was the answer on Google
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