Question

$\huge{\mathfrak{prove\:that}}$

$\bf{log_a\:mn\:=\:log_a\:m\:+\:log_a\:n }$

aur kya batau ??​

Answer 1

Step-by-step explanation:

Cos(A+B) cos(A-B)

=> (cosA cosB - sinA sinB) cosA cosB - sinA sinB)

=> cos²A cos²B - sin²A sin²B

=> cosA (1-sin²B) - (1-cos²A) sin²B + cos²A sin²B

=> cos²A - sin²B

Answer 2

Answer:

hello kamini

Mind ka stress kam kar de apni chudail jaisi baaton se

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