- Write the product as a sum: cos(9x) cos(5x) Write the sum as a product: sin(x) − sin(6x)?

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Discrete Help ASAP. Please write out symbolic notation.? =B y I y is an integer and ≤−4 White light is directed at difraction grating at angle normal to gratting.starting at norml to grating 0dgre the odr of red,gren,blue wil be? What do people do when they are fine and everythings good? How do i know what to do now that ive reached my goals? Problem involving math induction! If m and n are distinct real numbers, prove that (m+2)^2 = (n+2)^2 if and only if x+y=-4?