If sin a = and cosB = -, find the value of sin(a – B) and cos(a +B)
mrsonu962:
hy. i think your question is wrong...plz check it
My question is, If sin alpha = 3/5 and cos beta =9/11, find the value of sin(alpha-beta) and cos(alpha+beta).
ok .. i get it
i will. answer
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