Question

$3 sin 45° - 2 kos 60$
​

Answer 1

Answer:

cos0

o

+sin45

o

+sin30

o

)(sin90

o

−cos45

o

+cos60

o

)

=(1+

2

1

+

2

1

)(1−

2

1

+

2

1

)

=(1+

2

1

+

2

1

)(1+

2

1

−

2

1

)

=(

2

3

+

2

1

)(

2

3

−

2

1

)

=(

2

3

)

2

−(

2

1

)

2

=

4

9

−

2

1

=

4

7

Answer 2

Answer:

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