Question

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Please solve the question -
$\sf If\: \rm x \ = \frac{4}{7}\:Find \: \sf \cos \: x \:and \sf \: tan \: x$
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Answer 1

Answer:

your answer

:-)

Step-by-step explanation:

Given, sinx=

53

cosecx=

sinx

1=( 53)1 = 35

since

2 x+cos

2 x=1⇒cos

2x=1−sin

2 x⇒cos

2 x=1−( 53 ) 2

⇒cos 2 x=1− 259⇒cos 2 x= 2516⇒cosx=± 54

Since x lies in the 2rd quadrant, the value of cosx eill be negative

∴cosx=−54

secx=

cosx

1= (− 54)1 =− 45

tanx=

cosxsinx

= (− 54 )( 53 )

=− 43

cotx= tanx1 =−34 .

Answer 2

Answer:

Refer to the above attachment . btw this is an example of this type of question so please try to find you solution according to the above attachment.

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