<span>36^log6(5)+10^(1-log10(2)) - 8^log 2(3)=6^2*log6(5)+10/10^log10 (2)-2^3log2(3)=5*5+5-3*3*3=25+5-27=3
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sin8x cos12x+ sin12x cos8x=sin(8x+12x)=sin20x
B1 = 3
q = 3
S5 - ?
S5 = (b1*(q^n - 1))/(q - 1) = (3*(3^5-1))/(3-1) = <span> 363</span>
Sinkv a + coskv a =1
coskv a = 1-sinkv a
9 +5.sinkva -5(1-sinkv a)
9+5.sin kv a -5 + 5.sinkv a = 10 sinkv a +4