cross multiplication

When calculating sides or angles of right angled triangles, it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give accurate values for any degree of tan, sin or cos. It ..

Introduction - When calculating sides or angles of right angled triangles, it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give accurate values for any degree of tan, ..

When calculating sides or angles of right angled triangles , it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give accurate values for any degree of tan, s..

Question: Solve the following equation: Answer: 5(3x+5) = 2(2x-1) (by cross-multiplication) 15x-4x = -2-25 11x = -27 ..

Question: Solve the following equation: Answer: 5(2-9x) = 4(15-4x) (by cross multiplication) 10-45 x= 60-16x -45x+16x=60-10 -29x=50 ..

Question: Solve the following equation: Answer: 4x + 7 = -3 (2x + 1) (By cross-multiplication) 4x+7=-6x-3 4x+6x=-3-7 10x=-10 x=-..

Point of intersection of two lines - Then (x 1 , y 1 ) lies on both (i) and (ii). Solving for x 1 and y 1 by the method of cross multiplication, we obta..

From (1) and (2) and by rule of cross multiplication, we get Eliminating, we ha..

Two different sexes i.e., male and female take part in the process. Testis in male produces the male gametes or sperms and the ovary in female produces female gametes or ova. Gametes are formed by meiosis or reduction division and so are haploid in nature. Sperms are motile and move towa..

The transmission path is limited by the skip distance at one end and the curvature of the Earth at the other. The longest single-hop distance is obtained when the ray is transmitted tangentially to the surface of the Earth, as shown in below figure. For the F 2 layer, this corresponds to a maximu..