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# Secant's relative

Answer for the clue "Secant's relative ", 6 letters:

**cosine**

### Alternative clues for the word cosine

### Word definitions for cosine in dictionaries

**The Collaborative International Dictionary**
Word definitions in The Collaborative International Dictionary

Cosine \Co"sine\ (k?"s?n), n. [For co. sinus, an abbrev. of L. complementi sinus.] (Trig.) The sine of the complement of an arc or angle. See Illust. of Functions .

#### Usage examples of cosine.

The headings of the columns of these tables gave the Lunarian symbols for sine, __cosine__, tangent, and the like.

In order to make any solution at all possible you have assumed __cosine__ squared theta negligible.

Daniel passes an extraordinarily pleasant half-hour turning Dappa’s steady observations into sines and __cosines__, conic sections and fluxions.

These machines had left far behind such elementary operations as integration, such kindergarten functions as __cosines__ or logarithms.

Woolsey stressing the significance of __cosines__, which he'd pronounced "cousins," and Lottie Estes explaining the role of potholders in a well-organized kitchen.

He said more, about slighter turns and sines and __cosines__: Turk didn't seem to get it any better than Zelde did.

The next morning the blackboard was present, fixed by thumbscrews within easy reach of the Captain's hand, and from it the boys were taught, with words and diagrams, the nature of sine, __cosine__, tangent, cotangent, secant and cosecant, the relations between them, and their value in helping to find your position in a prodigious ocean, no shore, no landmark for ten thousand miles.

Now, to strike an equation--and you'll pardon me for oversimplifying--let's say that our __cosine__ is .

Then on to series of powers, and the elementary transcendental functions such as sines, __cosines__, logarithms, and exponents.