vipinthakurjnp
vipinthakurjnp
01-09-2020
Mathematics
contestada
plz solve this question immediately
Respuesta :
bfranky43
bfranky43
01-09-2020
squaring both sides
squaring both sides
cos2+sin2+2cossin=1
cos
2
A
+
sin
2
A
+
2
cos
A
sin
A
=
1
⟹1+2cossin=1⟹2cossin=0
⟹
1
+
2
cos
A
sin
A
=
1
⟹
2
cos
A
sin
A
=
0
⟹−2cossin=0⟹1−2cossin=1
⟹
−
2
cos
A
sin
A
=
0
⟹
1
−
2
cos
A
sin
A
=
1
⟹cos2+sin2−2cossin=1
⟹
cos
2
A
+
sin
2
A
−
2
cos
A
sin
A
=
1
⟹(cos−sin2)=1
⟹
(
cos
A
−
sin
A
2
)
=
1
⟹cos−sin=±1
Answer Link
VER TODAS LAS RESPUESTAS ( 28+ )
Otras preguntas
Which model calls the consumer a “patient” and the therapist an “interpreter”?
Find a new perimeter and area if the shape is enlarged by a scale factor of two
In 1999, sean fanning, john fanning, and sean parker invented napster, a global, free-of-charge, peer-to-peer music sharing program. prior to napster, no such p
Laissez-faire __________ means an economic system with little government regulation or interference.
"what are the largest values of n for which n! has fewer than 100 decimal digits
The cost of local government is ultimately passed on to
An ionic bond is a bond in which atoms share electrons. atoms are repelled by each other. atoms share neutrons. atoms of opposite charges attract each other. at
Which presidents are serving during the timeline?
The main purpose of the challenger expedition was to find new fishing areas for england.
An emt uses the abbreviation cpap when speaking to another emt. this is an appropriate use of an abbreviation because:
