Math, asked by harwinderbariar117, 14 days ago

please tell answer of this question..​

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Answered by BrainlyUser2640
0

Answer:

cos(70-theta) can ve written as sin(90-70-theta)

i.e., sin(20-theta)

now substituting it in the question

sin(20-theta)-sin(20-theta)=0

Hope it helped

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Answered by namjinsopevminkook77
4

Answer:

Hey Army!

Hope this helps you :D

Step-by-step explanation:

GIVEN:

= cos (70°+θ) — sin (20° — θ)

= cos (70°+θ) — sin [90°-(70° + θ)]

= cos (70°+θ) — cos (70° + θ)

= 0

Hence the final answer is 0

...

SARANGHAEYO! <3

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