Question

(ii)
sin? 0 + cos3 0
sin + cose
= 1 - sin 0 cos 0​

Answer 1

Answer:

Correct option is

C

4

7

(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