9 sinf matematika umumtalim chsb 2 demo

[image: ] 9-sinf matematika 2-chsb demo [bookmark: _heading=h.gjdgxs]1. (b 1 ball) quyidagi tasdiqlarning to‘g‘ri yoki noto‘g‘ri ekanligini aniqlang. 1. birinchi chorakdagi burchak kosinusining ishorasi “” 2. uchinchi chorakdagi burchak sinusining ishorasi “” 3. ikkinchi chorakdagi burchak tangensining ishorasi ““ a) to‘g‘ri, noto‘g‘ri, to‘g‘ri; b) to‘g‘ri, noto‘g‘ri, noto‘g‘ri; c) noto‘g‘ri, noto‘g‘ri, noto‘g‘ri; d) to‘g‘ri, to‘g‘ri, noto‘g‘ri; 2. (b 1 ball) berilgan tenglamalar sistemasini qanoatlantiruvchi juftlikni toping. a) () b) () c) () d) () 3. (b 1 ball) ikki sonning yig‘indisi 14 ga ularning ko‘paytmasi 33 ga teng. shu sonlardan kattasini toping. a) b) c) d) 11 4. (q 4 ball) tenglamalar sistemasini yeching a) va b) va c) va d) va 5. (q 4 ball) tenglamalar sistemasini yeching. a)...

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