180 Days of Science: Grade 2 - Daily Science Workbook for Classroom and Home, Cool and Fun Int

180 Days of Science: Grade 2 - Daily Science Workbook for Classroom and Home, Cool and Fun Int

Matematika Jika diketahui tan a =
[tex] \frac{12}{16} [/tex]
maka tentukanlah nilai dari (sin a . sec a)​

Jika diketahui tan a =
[tex] \frac{12}{16} [/tex]
maka tentukanlah nilai dari (sin a . sec a)​

Penjelasan dengan langkah-langkah:

tan = de/sa = 12/16

c = √(12² + 16²)

= √(144 + 216)

= √400

= 20

sin ɑ = de/mi = 12/20

sec ɑ = mi/sa = 20/16

sin ɑ . sec ɑ

= 12/20 × 20/16

= 3/5 × 5/4

= 15/20

= 3/4

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