Question

tolong dibantu + dijawab dengan caranya ​

Answer 1

Jawaban:

maaf kalau salah

semoga jadi jawaban tercerdas

mau tau jawaban nya lebi bagus cari zenius

Answer 2

Jawaban:

Cosec B = -13/12 => sin B = -12/13

B di kuadran 4 maka Tan B <o, sin B<o

cos B >o

sin² B + cos²B = 1

(-12/13)² + cos²B = 1

144/169 + cos²B = 1

cos²B = 1 - 144/169

cos²B = 169-144/169

cos²B = 25/169

cosB = √25/169

cosB = 5/13

TanB = sin B / cos B

= -12/13 / 5/13

= -12/13 × 13/5

= -12/5 (B.)

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