jackieb1770 jackieb1770

10-10-2020
Mathematics

contestada

If sin α + cos α =1.2, find sin α · cos α .

Respuesta :

supriya81 supriya81

10-10-2020

sina+cosa=1.2
Squaring on both sides we get,
(Sina)^2+2sina.cosa+(cosa)^2=1.44
(sina)^2+(cosa)^2+2sina.cosa=1.44
1+2sina.cosa=1.44
2sina.cosa=1.44-1
2sina.cosa=0.44
sina.cosa=0.22

Answer Link

Otras preguntas

does anybody know the answer?

will give 15 points

PLEASE HELP I NEED THIS IS DUE IN AN HOUR!!! 40 POINTS!!!Sherelle and Venita’s grandmother said that one of the bags has a coin from 1916. What reasons might Sh

sometimes dream become a reality

15-year old students a) How many 15-year old students took part in the survey? (1) b) How many more 15-year old students than 11-year old students spent between

A fair coin and a spinner with an equal chance of landing on the numbers 1, 2, 3, 4, 5, and 6 are used in a game. What is the probability of getting an even num

what are the respiratory movement of Man?Are they same in a grasshopper or a fish?

can some one help me, I need help on writing about global warming using hyperbole.hyperbole-Hyperbole is when you use language to exaggerate what you mean or em

Work out the point of intersection of the lines 2x + 3y = 11 and 2y = 13 – 3x

Can somebody plz help answer these questions correctly (only if u done this before) thx :3 WILL MARK BRAINLIEST WHOEVER ANSWER THESE FIRST :DDD