Question

(iii) किसी अंकगणितीय श्रृंखला के लिए यदि 1,=4 तथा d=-4 है, तो a का मान कितना? (A) 6 (B)7 (C) 20 (D) 28 (iv) यदि दो सिक्को को एक साथ उछाला गया हो, तो नमूना अवकाश के घटकों की संख्या कितनी है? (A)8 (B)4 (C) (D) 1​

Answer 1

Answer:

Ok, first you're going to have to factor the function inside the log:

2x^2 +8x+8, you can use the quadratic formula and you'll get these factors:

(2x+4)(x+2)

Now you have log2 ((2x+4)(x+2))

When you have multiplication inside logs that is equal to sdding logs

log2(2x+4) + log2 (x+2)

Now from the first part you can factor out a 2

2(x+2)

log (2) + log (x+2) + log (x+2)

And that's as far as it can expand