1) Kosinuslar teorimasini toping a) a^=b^+c^-2bccosA b) c^=c^+b^-2bccosC c) b^=a^+c^-2accosB 2) ā×ɓ ning skalyar koʻpaytmasini toping a) [a]×[b]×cosx b) ab×cosx c) ab+cosx 3) a×b=0,cosx burchakni toping a) x=90° b) x=180° c) x=60° 4) sinuslar teorimasini toping a) a/sinA=b/sinB=c/sinC b) a/sinB=b/sinA=c/sinC c) c/sinB=a/sinA=b/sinB 5) 1+tg^x ning qiymatini toping a) 2/cos^x b) 1/cosx c) 1/cos^x 6) Tomonlari teng,diagonallari oʻzaro perpendikular boʻlgan shakl a) kvadrat b) parallelogram c) romb 7) toʻgʻri toʻrtburchakning 60°qarshisidagi tomoni 16 boʻlsa 30° va 90°qarshisidagi tomonni toping a) 32va16/ildiz osti 3 b) 32/ildiz osti 3 va16/ildiz ostida 3 8) cosx/sinx qiymatini toping a) tg^x b) 1 c) ctgx

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