If sina + 2cosa = 1

then prove

2sina - cosa = 2...

Math, 26.02.2020 13:10, gyanendra19

# If sina + 2cosa = 1

then prove

2sina - cosa = 2

Answers: 2

Math, 19.08.2019 10:00, sabina3193

Find by inspection and coefficient of x in the following expansions1- (x+7) (x+2)

Answers: 3

Math, 19.08.2019 17:00, jack626259

Ihave 7 bags of marbles. there are 200 marbles in total. using the clues below, work out how many marbles are in each bag. bag 1 + bag 2 = 57 marbles bag 2 + bag 3 = 83 marbles bag 3 + bag 4 = 71 marbles bag 4 + bag 5 = 43 marbles bag 5 + bag 6 = 66 marbles bag 6 + bag 7 = 43 marbles write your answer as number of marbles in bag 6 + bag 2 + bag 5

Answers: 1

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