Briefly explain the importance of each of the following to early river valley civilizations from 3500–450 B.C. 5.pharaoh

(a) State the reciprocal identities for cosecant, secant , and cotangent. (b) State the even-odd identities for sine and cosine. (c) State the cofunction identities for sine, tangent, and secant. (d) Suppose that cos(-x) = 0.4; use the identities in parts (a) and (b) to find sec x. (e) Suppose that

$$\sin 10 ^ { \circ } = a$$

; use the identities in part (c) to find

$$\cos 80 ^ { \circ }$$

.

Briefly explain the importance of the following to early river valley civilizations from 3500 - 450 B.C. 6.hieroglyphics

What does the uniformity of Indus Valley cities tell us about their government?

Explain the dynastic cycle in China.

Briefly explain the importance of the following to early river valley civilizations from 3500–450 B.C. 4.empire

Briefly explain the importance of the following to early river valley civilizations from 3500–450 B.C. 1.Fertile Crescent

What was the great advantage of the Chinese written language?

What evidence exists to show that Indus Valley civilizations traded with Sumer?

Herodotus remarked that Egypt was the “gift of the Nile.”What did he mean by this?

$$\begin{array} { l } { \text { Determine the number of ways in which the vertices of an equilat- } } \\ { \text { eral triangle can be colored with five colors so that at least two col- } } \\ { \text { ors are used. } } \end{array}$$

Why did the Egyptians build pyramids?

Name three disadvantages of Sumer’s natural environment

A baker uses 1.5 tsp of vanilla extract in each cake. How much vanilla extract in liters should the baker order to make 800 cakes? (1 tsp=5 mL)