1. Uprość wyrażenie
a) tg α * cos α + 1b) ctg α * sin α - 1
2. na rysunku
1
a) sin/cos*cos+1=sin+1
b) cos/sin*sin-1=cos-1
2
a) 3/x=8/8
8x=24
x=3
b) 2/6=(2+x)/30
12+6x=60
6x=60-12
6x=48
x=8
1) tgα·cosα+1=(sinα/cosα)cosα+1=sinα+1
ctgα·sinα-1=(cosα/sinα)sinα-1=cosα-1
2) a) x/8=3/8
b) 6/30=2/2+x
1/5=2/2+x
2+x=10
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1
a) sin/cos*cos+1=sin+1
b) cos/sin*sin-1=cos-1
2
a) 3/x=8/8
8x=24
x=3
b) 2/6=(2+x)/30
12+6x=60
6x=60-12
6x=48
x=8
1) tgα·cosα+1=(sinα/cosα)cosα+1=sinα+1
ctgα·sinα-1=(cosα/sinα)sinα-1=cosα-1
2) a) x/8=3/8
8x=24
x=3
b) 6/30=2/2+x
1/5=2/2+x
2+x=10
x=8