Question

tan theta =8/7
Find:-(1+sin theta)(1-sin theta)/(1+cos theta )(1-cos theta)

Answer 1

Answer:

so value of given expression is 49/64

Step-by-step explanation:

let theta be x,

then,

(1+sin x) (1-sin x) /(1-cos x) (1+cos x)

= (1-sin^2x)/(1-cos^2x)

= cos^2x/sin^2x

= cot^2x

= 1/tan^2x

= (7/8)^2

= 49/64

Answer 2

Answer:

0.76584

Step-by-step explanation:

tan theta = ( 8÷7 )

theta = 48.81

(1+sin theta) (1-sin theta ) ÷ (1 + cos theta ) ( 1 - cos theta )

( 1 - sin^theta ) ÷ ( 1 - cos^theta)

( cos^ theta ) ÷ (1 - cos^theta) [now input theta value ]

= 0.76584

Ans