Question

sin 36°+ cos36/
cos54+sin 54=1​

Answer 1

Answer:

1

Step-by-step explanation:

• sin(90-54) + cos(90-54)/cos54+ sin54 then cos54 +sin54/cos54+sin54 is equal 1

Answer 2

Answer:

we have

Step-by-step explanation:

LHS=cos36° cos54°-sin36° sin54°. we know the trigonometry identify. cos (90-¢)=sin¢. fist, Ripley's ¢ by 54°, we get cos (90°-54°)=sin54°. =>cos36°=sin54°......(1) know Ripley's ¢ by 36°. we get cos(90°-36°)=sin 36°. =>,cos54°=sin36.....(2). using equation 1&2 we get,. LHS=cos36° cos54°-sin36° sin54°=sin54 sin36°-sin54 sin36°. =0=RHS. thus,cos36° cos54°-sin36° sin54°=0. I hope you are happy.