Question

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Answer 1

Answer:

2. teta=45

Step-by-step explanation:

we know sin "2 teta +cos " 2 teta = 1

so the teta should be equal

3.cos teta =3/5

4. cos A = 5/13

6.1

7.tan teta=4/3

8. 8/5

Answer 2

Answer:

2.teta=40

3.0.6669

4.5/13

5.1

6.0

7. tan@=(sin@/cos@) = 4/3

8.insufficient data

9.2

10.tan @= √(n^2-m^2)/m

Step-by-step explanation:

2.

sin^2 ¢+cos^2¢=1

then from this trigonometric identity

teta must be 40

3.

cos¢=√(1-sin^2(40))

4.

cos¢=5/13

5.

sin32

cos(90-32). [cos(90-@)=sin@]

sin32

sin32

=1

6.

SIN 30=COS 60

SIN 30*COS 60=1

1-1=0

7.

3sin@=4 cos@

sin@/cos@. = 4/3

tan@ = 4/3

8.

insufficient data

9.

sin^2(35)+cos^2(35)=1

tan45=1

then 1+1 =2

10.

cos@ =m/n

apply Pythagoras theorem

tan@ =√(n^2-m^2)/m

sin@ = √(n^2-m^2)/n