Question

Sin75 градус × sin 15 градус​

Answer 1

75-15=60

Наприклад:градус +градус максимальне число,додаємо і рахуємо скільки балів!!!

Answer 2

To find the value of sin(75 degrees) multiplied by sin(15 degrees), we can use the trigonometric identity:

sin(A) * sin(B) = (1/2) * [cos(A - B) - cos(A + B)]

Applying this identity, we have:

sin(75 degrees) * sin(15 degrees) = (1/2) * [cos(75 - 15) - cos(75 + 15)]

= (1/2) * [cos(60) - cos(90)]

Since cos(60) = 1/2 and cos(90) = 0, we can substitute these values:

= (1/2) * [(1/2) - 0]

= (1/2) * (1/2)

= 1/4

Therefore, sin(75 degrees) * sin(15 degrees) equals 1/4.