6)tga=1
1+tg^a=1/cos^2a
1/cos^2a=1+1
1/cos^2a=2
cos^a=1/2
6×1/2=3
3)25×5^2x+1=1
5^2×5^2x+1=5^0
2x+1+2=0
2x=-3
x=-1,5
4)открываем скобки
10^3/4×2^3/4×10^1/4×2^1/4×(3^4)^1/4-\/0,49=
10×2×3-0,7=60-0,7=59,3
5)log2 40-log2 5+log2 2=log2(40÷5×2)=log2 16=4
11)log4 (6-x)=3
6-x=4^3
6-x=64
x=-58
12)f(x)=1/4x^4-1/2x^2-x+14
f'(x)=1/4×4x^3-1/2×2x-1
f'(x)=x^3-x-1
13) интеграл2 1(3х^3+3х-1)dx=3/4x^4+3/2x^2-x|2 1=(3/4×16+3/2×4-2)-(3/4-3/2-1)
=12+6-2+1 3/4=17 3/4=17,75
6)tga=1
1+tg^a=1/cos^2a
1/cos^2a=1+1
1/cos^2a=2
cos^a=1/2
6×1/2=3
3)25×5^2x+1=1
5^2×5^2x+1=5^0
2x+1+2=0
2x=-3
x=-1,5
4)открываем скобки
10^3/4×2^3/4×10^1/4×2^1/4×(3^4)^1/4-\/0,49=
10×2×3-0,7=60-0,7=59,3
5)log2 40-log2 5+log2 2=log2(40÷5×2)=log2 16=4
11)log4 (6-x)=3
6-x=4^3
6-x=64
x=-58
12)f(x)=1/4x^4-1/2x^2-x+14
f'(x)=1/4×4x^3-1/2×2x-1
f'(x)=x^3-x-1
13) интеграл2 1(3х^3+3х-1)dx=3/4x^4+3/2x^2-x|2 1=(3/4×16+3/2×4-2)-(3/4-3/2-1)
=12+6-2+1 3/4=17 3/4=17,75