Jawab:
Penjelasan dengan langkah-langkah:
sudut relasi
sin(90- a) = cos A
sin(90 +a) = cos A
sin (¹/₂ π + α) + sin (¹/₂ π - α) =
= sin (90+ α) + sin (90 - α)
= cos α + cos α
= 2 cos α
sin(1/2 π + a) = cos a
sin(1/2 π - a) = cos a
maka
sin(1/2 π + a) + sin(1/2 π - a)
= cos a + cos a
= 2 cos a
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Jawab:
Penjelasan dengan langkah-langkah:
sudut relasi
sin(90- a) = cos A
sin(90 +a) = cos A
sin (¹/₂ π + α) + sin (¹/₂ π - α) =
= sin (90+ α) + sin (90 - α)
= cos α + cos α
= 2 cos α
sin(1/2 π + a) = cos a
sin(1/2 π - a) = cos a
maka
sin(1/2 π + a) + sin(1/2 π - a)
= cos a + cos a
= 2 cos a