Question

By cross multiplication method, solve : 11x +15y +23 =0

Answer 1

Answer:

If sin (A+B) = 1/√2 and cos (A-B) =1/√2then angleB =??

Step-by-step explanation:

Peace is a concept of societal friendship and harmony in the absence of hostility and violence. In a social sense, peace is commonly used to mean a lack of conflict (such as war) and freedom from fear of violence between individuals or groups