Question

help me with this question... any one no spammers...​

Answer 1

Answer:

Answer in attachment bro..

Step-by-step explanation:

Thanks to all answers plz plz plz bro plz plz...

Answer 2

Step-by-step explanation:

cos(

4

3π

+x)−cos(

4

3π

−x)

=cos

4

3π

cosx−sin

4

3π

sinx−cos

4

3π

cosx−sin

4

3π

sinx

=−2sin

4

3π

sinx

=−2(−sin

4

π

)sinx

=

2

sinx

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