lenaliu3517 lenaliu3517

09-03-2018
Mathematics

contestada

Use the angle sum identity to find the exact value of cos 105

Respuesta :

verdeesm3ralda verdeesm3ralda

09-03-2018

so use the angle sum identity which we know to be cos(105) =cos(45+60)=cos45 cos 60 - sin 45 sin 60

Answer Link

Otras preguntas

PLEASE HELP!!! According to the graph below, what is the value of the constant in the equation below?

What is the final amount if 660 is increased by 1% followed by a further 1% increase? Give your answer rounded to 2 DP.

Peggy has $30 to spend on one book at the bookstore. She has a coupon for 15% off the price of one book. She will be charged 7% tax. What is the price (before s

The table below shows the fossils of organisms found in various layers of an undisturbed rock: Which statement about the organisms whose fossils are found in th

What is 7m x 2n because I do not understand and would like some help

Robert James Fischer was born in Chicago but unlocked the secrets of chess in a Brooklyn apartment right above a candy store. At the age of six he taught himsel

a paragraph of the jamaican song susie and a paragraph of the Jamaican song Linstead Market i rly need this its for school work and I'm soooooooooo stuck

What impact did the Han Chinese have on the Xiongnu?

Which line of poetry contains examples of assonance? 0 1. O 2. O3. 4. Odd how a lock of blond hair on a doll can notch the clock of memory. We would ever seek i

Choose the three terms that MOST refer to the Holocaust. A) D-Day B) B anti-Semitism C) Final Solution D) Nuremberg Laws E) Treaty of Versailles