Question

cos theta by 1 minus sin theta minus cos theta by 1 + sin theta equals to 2tan theta​

Answer 1

Step-by-step explanation:

cos@/1-sin@-cos@/1+sin@. =2tan@

=cos@(1+sin@)-cos@(1-sin@). /. (1-sin@)(1+sin@)

=cos@+sin@cos@-cos@+sin@cos@ / 1-sin²@

,=2sin@cos@/cos²@

=2sin@/cos@

=2tan@

hope this helps you