If the cos 90° = 0, then the sin 0° = 0, because the angles are complementary , because the angles are complementary , because the angles are supplementary 1, because the angles are complementary

Option 1 is correct.

Step-by-step explanation:

Given If the cos 90° = 0, then the value of sin 0° is

As cos Ф=sin(90-Ф)

because angles are complementary i.e Ф+(90-Ф)=90

∴ cos 90° = sin(90-90)°=sin 0°

cos 90°=0 gives sin 0°=0 as cos 90°=sin 0°

because the angles are complementary i.e 90°+0°=90°

Hence, option 1 is correct

s + (a + 178) = 2000

step-by-step explanation:

2000 - 178 = 1822

1822 / 2 = 911

911 + 178 = 1089

1089 + 911 = 2000

abha = 1089

shane = 911

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