Answer:
-1/√2
Step-by-step explanation:
According to trigonometry identity
cos(A+B) = cosAcosB - sinA sinB
Given the expression
(cos92°)(cos133°)-(sin92°)(sin133°)
This can be expressed as cos(92+133) where A = 92, B = 133
(cos92°)(cos133°)-(sin92°)(sin133°)
= cos(92+133)
= cos225
= -0.7071
= -1/√2
Hence the exact value is -1/√2
Answer:
27 cm²
Step-by-step explanation:
its in the picture idk how to explain
Complement of JEF is 50 degrees
supplement of JEF is 140 degrees
complement of DON is -34 degrees or depending on your teacher, the answer is NONE.
supplement of DON is 56 degrees
Answer:
I think the answer is 2,838
