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(13)ABC,ABCab....doc

(13)ABC,ABCabc,= ,=(cos2A,2sinA),. (1)sinA; (2)b=2,ABC3,a. ...

2012.doc

(15) ( 13 ) , , . ( ) ; ( ) , b . (16) ( 13 ) ...

2012.doc

(15) ( 13 ) , , . ( ) ; ( ) , b . (16) ( 13 ) ...

201612().pdf

(15)(13) ABC,a,b,cA,B,C,b2+c2-a2=bc. ()A; ()a=2, ,,,...

2014().doc

16.( 12 ) VABC , ?A?B?C abc , () ABC ; () f ? x ? ? sin...

2017 ().doc

15.( 13 ) , . (I)(II) ; . . , 16.( 13 ) ,...

2016().doc

z 10.,A,B,Ca,b,c. ...; ()fx (),,. ...? ? ? 16.(13) ...

().doc

17 ( 12 ) ABC , ABC a..., f ( x ) ?2 , 3 , a , b . ?...

2015---.doc

() a ;() sin 2 A . 3 7 , ABC . 4 4 16. ( 13 ) ABC , A, B, C a, ...

2017()().pdf

:6,80., . 15.(13) ,.,,. (); (...

.doc

2 (2) b=2, ABC . 2...7 ABC , ABC a...( 13 ) ABC ,a,b,c ...

2009().txt

(6,74) 16.(13) ,,...(),,. 18.(13)...

()2006-2011_.doc

sin x ? cos x , f(A). 6.( 2012.04) . ( 13 ) 1 ?ABC , A ,B ,C a ,b ,c ,...

- .doc

c ABC A,B,C ,c = ...(16) ( 13 ) ABC , A...(I) PA BC ; (...

.txt

7.ABC,A,B,Ca,b,c... , () ;() ...(2010)(18).(13), ()...

2012().doc

16.( 13 ) , ABC a, b, c ...() sin( A + B ) ; () sin A ; 2 , cos C = ...

().pdf

15. (13) ,ABC,,,. (); (). 15.(13) :(I),,, 1 ,...

2011()01.doc

12 5. ()17. ( 12 ) V ABC , A,B,C a,b,c, 3a cos A = c cos B + b cos C (1) cos A...

2015()---....doc

ABC . 16. (15 ) ( 13 ) ABC , A,B,C a,b,c. () cos C ; () sin...

2016()().doc

( 13 ) ?ABC , A, B, C a,...1 , sinC . 3 () ? 6 2 6 ?1 6 : ...

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