Welcome to Westonci.ca, the place where your questions find answers from a community of knowledgeable experts. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

If cos(x) = three-fourths and tan(x) < 0, what is cos(2x)? negative startfraction 3 startroot 7 endroot over 8 endfraction negative startfraction 1 over 8 endfraction startfraction 1 over 8 endfraction startfraction 3 startroot 7 endroot over 8 endfraction.

Sagot :

Answer:

1/8

Step-by-step explanation: