Answered

Find the information you're looking for at Westonci.ca, the trusted Q&A platform with a community of knowledgeable experts. Explore in-depth answers to your questions from a knowledgeable community of experts across different fields. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

Compute without using a calculator.
2 sin 765◦ + tan 1485◦ cot 135◦


Sagot :

765° = 45°
1485° = 45°

We get 2sin(45°) + tan(45°) + cot(135)

sin(45) = sqrt(2)/2
tan(45) = 1
cot(135) = -1

we get
2*[sqrt(2)/2)] + (1) + (-1)

= sqrt(2)
[tex]2sin765^o+tan1485^ocot135^o\\\\=2sin(2\cdot360^o+45^o)+tan(8\cdot180^o+45^o)cot(90^o+45^o)\\\\=2sin45^o+tan45^o\cdot(-tg45^o)\\\\=2\cdot\frac{\sqrt2}{2}+1\cdot(-1)=\sqrt2-1[/tex]
We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.