Qanday yordam kerak?

douglas allred

Recent activity by douglas allred

Trig Identity help
1. Hamjamiyat
2. Study Group
I really can't figure out how they got this last equivalent. Can someone help?

Faollik ko’lami 2
Oxirgi harakat June 08, 2023 09:25
hamjamiyati bilan birga June 08, 2023 09:25

Oqiyabdi 0 foydalanuvchii
O’qiyotganlarni 0 foydalanuvchii
Ovozlar 0
Obunalar 1

Faollik ko’lami 2
Oxirgi harakat June 08, 2023 09:25
hamjamiyati bilan birga June 08, 2023 09:25

Oqiyabdi 0 foydalanuvchii
O’qiyotganlarni 0 foydalanuvchii
Ovozlar 0
Obunalar 1